For the function f(x) = 2x^4 In x, find f'(x).

Answers

Answer 1

To find the derivative (f'(x)) of the function f(x) = 2x^4 In x, we will need to use the product rule and the chain rule of differentiation.

Using the product rule, we have:

f'(x) = [2(In x)](4x^3) + [2x^4](1/x)

Simplifying this expression, we get:

f'(x) = 8x^3 In x + 2x^3

Therefore, the derivative of f(x) is f'(x) = 8x^3 In x + 2x^3.
Hi! To find the derivative f'(x) of the function f(x) = 2x^4 * ln(x), we'll use the product rule. The product rule states that if you have a function h(x) = u(x)v(x), then h'(x) = u'(x)v(x) + u(x)v'(x). In this case, u(x) = 2x^4 and v(x) = ln(x).

First, find the derivatives of u(x) and v(x):
u'(x) = d(2x^4)/dx = 8x^3
v'(x) = d(ln(x))/dx = 1/x

Now, apply the product rule:
f'(x) = u'(x)v(x) + u(x)v'(x)
f'(x) = (8x^3)(ln(x)) + (2x^4)(1/x)

Simplify the expression:
f'(x) = 8x^3 * ln(x) + 2x^3

This is the derivative of the given function.

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Related Questions

Six friends are selling crafts at a flea market. they each need to pay $7. 20 to pay

for the table rental. they each sell 3 items. if every item is the same price, and the

6 friends make a total profit of $25. 20, what was the sale price of each item?

Answers

To find the sale price of each item, we need to use some basic algebra. Let's call the sale price of each item "x".

First, we need to find the total cost of the table rental for all six friends. Since each friend needs to pay $7.20, the total cost of the table rental is 6 * $7.20 = $43.20.

Next, we need to find the total revenue from selling the items. Each friend sells 3 items, so the total number of items sold is 6 * 3 = 18. The total revenue is the number of items sold multiplied by the sale price, so the total revenue is 18x.

We know that the total profit is $25.20, which is the total revenue minus the total cost of the table rental. So we can set up the equation:

18x - $43.20 = $25.20

Simplifying this equation, we get:

18x = $68.40

Dividing both sides by 18, we get:

x = $3.80

Therefore, the sale price of each item is $3.80.

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A regular size chocolate bar was 5 4/9 inches long. if the king size bar is 3 2/5 inches longer, what is the length of the king size bar?

please help me!!!!

Answers

Answer:

8 38/48

Step-by-step explanation:

2. The town's five traffic enforcement officers hand out 14, 8, 10, 4, and
15 "good driving" citations. What part of the total number of citations do
the top two officers hand out?

Answers

The top two officers hand out approximately 56.86% of the good driving citations.

The given good traffic citations are = 14, 8, 10, 4, and 15.

Among the above citations, the top two officers get top 2 values for their good driving. The top two values are 14 and 15.

Lets add those top two good traffic citations and divide it by the total number of citations to find out the percentage the top two officers hand out.

Total number of citations = 14 + 8 + 10 + 4 + 15 = 51

Citations get by top two officers = 14 + 15 = 29

percentage handout by top two officers = 29 / 51 = 0.5686.

To convert the obtained value in to peercentage multiply it by 100.

so, 0.5686 x 100 = 56.86%

From the above analysis, we can conclude that the 56.86% of the citations could be hand out by the top two officers.

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In a shop where all items cost a whole number of dollars, I bought 3 packets of plain biscuits and 5 packets of chocolate biscuits. The total cost was $34. Harold says, ‘The packets of chocolate biscuits must have cost $2 each. Show that Harold is wrong

Answers

To show that Harold is wrong about the cost of chocolate biscuits being $2 each, we can use the given information:

You bought 3 packets of plain biscuits and 5 packets of chocolate biscuits, and the total cost was $34.

Let's use the variables P for the cost of plain biscuits and C for the cost of chocolate biscuits.

We can write the equation:


3P + 5C = $34

Harold claims that the cost of chocolate biscuits is $2 each. So, let's substitute C = $2 into the equation:


3P + 5($2) = $34

Now, we can solve for P:
3P + $10 = $34
3P = $24
P = $8

So, the cost of plain biscuits is $8 each. This means you bought 3 packets of plain biscuits for $24 and 5 packets of chocolate biscuits for $10, which adds up to the total cost of $34.

Since the cost of plain biscuits came out to be a whole number, Harold's claim that chocolate biscuits cost $2 each is not necessarily wrong.

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Kyra bought a ""trick"" coin that lands on heads with a probability of 0. 4. Which frequency table would Kyra most likely generate by flipping the coin many times?

Don't mind the answer c because I don't know if that's right

Answers

Kyra's trick coin is more likely to generate a frequency table with a higher count of tails than heads, reflecting the 0.4 probability of landing on heads and the 0.6 probability of landing on tails.

Kyra's "trick" coin has a probability of 0.4 for landing on heads, meaning that it is more likely to land on tails. If Kyra flips the coin many times, she will likely generate a frequency table that shows a higher frequency of tails than heads.

A possible frequency table might look like this:

| Outcome | Frequency |
|---------|-----------|
| Heads   | 40        |
| Tails   | 60        |

In this table, the coin landed on heads 40 times and tails 60 times, representing the probability of 0.4 for heads and 0.6 for tails (since the total probability must equal 1). The more times Kyra flips the coin, the closer the relative frequencies will get to the actual probabilities. It's important to note that this is just an example, and the exact frequency counts may vary in practice due to randomness.

To summarize, Kyra's trick coin is more likely to generate a frequency table with a higher count of tails than heads.

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A person sleeps in a tent while camping.

which equation correctly determines the
amount of material used, m, to construct
the fully enclosed tent.
a. =(8∙9)+2(7.5∙8)
b. =(8∙9)+2(7.5∙8)+2(1
2∙9∙6)
c. =2(8∙9)+2(7.5∙8)+(1
2 ∙9∙6)`
d. =3(8∙9)+2(1
2 ∙9∙6)

Answers

.m The correct equation to determine the amount of material used, m, to construct the fully enclosed tent is:

                         c. =2(8∙9)+2(7.5∙8)+(12∙9∙6)

To determine the amount of material used to construct the fully enclosed tent, we need to consider the surface area of the tent. The tent is fully enclosed, so we need to calculate the area of all the sides.

Option a. =(8∙9)+2(7.5∙8) calculates the area of the top and two sides of the tent. This does not include the front and back of the tent, so it is not the correct equation.

Option b. =(8∙9)+2(7.5∙8)+2(12∙9∙6) calculates the area of the top, two sides, front and back of the tent, but it also includes an extra term of 2(12∙9∙6) which is not necessary for a fully enclosed tent. This option overestimates the amount of material used.

Option c. =2(8∙9)+2(7.5∙8)+(12∙9∙6) calculates the area of the top, bottom, and all four sides of the tent. This is the correct equation to determine the amount of material used in a fully enclosed tent.

Option d. =3(8∙9)+2(12∙9∙6) overestimates the amount of material used because it includes an extra term of 3(8∙9) which is not necessary for a fully enclosed tent.

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PLEASE HELP QUICK!! Which is the best measure of central tendency for the data set below? { 10, 18, 13, 11, 62, 12, 17, 15} A. Median because there is an outlier B. Mean because there is no outlier C. There is no way to tell D. Mode because there is an outlier

Answers

The best measure of central tendency for the data set below { 10, 18, 13, 11, 62, 12, 17, 15} is option B- Mean because there is no outlier.

The best measure of central tendency for the given data set depends on the nature of the data and what you want to represent.

If you want to find the middle value of the data set that is not affected by the outlier, then the median is the best measure of central tendency. In this case, the median is 13, as it is the middle value when the data is arranged in ascending order.

If you want to find the typical or average value of the data set, then the mean is the best measure of central tendency. In this case, the mean is approximately 20, calculated by adding all the values and dividing by the total number of values.

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22

A statistical question is one where you expect to get a variety of answers. Determine whether each question can be classified as a statistical question. Select Yes or No for each question. Yes

No

How many hours a week do people exercise?

How many hours are there in a day?

How many rainbows have students seen this month?

Answers

To answer this question, determine the quantity asked for:

Answers are:
Yes - How many hours a week do people exercise?
No - How many hours are there in a day?
Yes - How many rainbows have students seen this month?

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PLS HELP! LAST QUESTION!
I WILL MAKE U BRAINLIST AND I NEED THIS!
PLS USE A DESMOS CALCULATOR AND SHOW ALL STEPS! I NEED IT.

Answers

Answer:

8.19 units.

Step-by-step explanation:

I didn't use desmos, i completed the question with all steps and working and didn't require desmos. Hope this Helps. Question was solved using trignometric ratios.

Haz la ecuación y la verificación según los datos que dan. 5. Un padre tiene 35 años y su hijo 5. ¿Al cabo de cuántos años será la edad del padre tres veces mayor que la edad del hijo?

6. Si al doble de un número se le resta su mitad resulta 54. ¿Cuál es el número?

7. En una reunión hay doble número de mujeres que de hombres y triple número de niños que de hombres y mujeres juntos. ¿Cuántos hombres, mujeres y niños hay si la reunión la componen 96 personas?

8. Una granja tiene cerdos y pavos, en total hay 35 cabezas y 116 patas. ¿Cuántos cerdos y pavos hay?

Answers

ccabo de 25 años será la edad del padre tres veces mayor que la edad del hijo.El número es 36.Hay 8 hombres, 16 mujeres y 72 niños.Hay 27 cerdos y 8 pavos

How many years will it take for the father's age to be three times the age of his son?

Sea x el número de años transcurridos. La edad del padre será 35 + x y la edad del hijo será 5 + x. La ecuación que representa la situación es: 35 + x = 3(5 + x). Resolviendo la ecuación, tenemos:

35 + x = 15 + 3x

2x = 20

x = 10

Por lo tanto, después de 10 años, la edad del padre será tres veces mayor que la edad del hijo.

Sea x el número desconocido. La ecuación que representa la situación es: 2x - (1/2)x = 54. Resolviendo la ecuación, tenemos:

(4/2)x - (1/2)x = 54

(3/2)x = 54

x = 36

Por lo tanto, el número desconocido es 36.

Sea x el número de hombres. Según la información dada, el número de mujeres es el doble, es decir, 2x, y el número de niños es el triple, es decir, 3(x + 2x) = 9x. La ecuación que representa la situación es: x + 2x + 9x = 96. Resolviendo la ecuación, tenemos:

12x = 96

x = 8

Por lo tanto, hay 8 hombres, 16 mujeres y 72 niños en la reunión.

Sea x el número de cerdos y y el número de pavos. Según la información dada, tenemos las siguientes ecuaciones: x + y = 35 (por el total de cabezas) y 4x + 2y = 116 (por el total de patas). Resolviendo este sistema de ecuaciones, obtenemos:

x + y = 35

4x + 2y = 116

Multiplicamos la primera ecuación por 2:

2x + 2y = 70

Restamos la segunda ecuación de la primera:

2x + 2y - (4x + 2y) = 70 - 116

-2x = -46

x = 23

Sustituyendo el valor de x en la primera ecuación, tenemos:

23 + y = 35

y = 12

Por lo tanto, hay 23 cerdos y 12 pavos en la granja.

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A globe company currently manufactures a globe that is 18 inches in diameter if the dimensions of the globe are reduced by half what would the volume be 

Answers

The volume of the new globe would be 381.51 cubic inches, which is half the volume of the original globe.

The volume of a sphere is given by the formula:

V = (4/3)πr³

where r is the radius of the sphere.

If the diameter of the globe is reduced by half, then the new diameter would be 9 inches, and the new radius would be half of that, or 4.5 inches.

The new volume would be:

V' = (4/3)π(4.5)³

= (4/3)×3.14×(91.125)

= 381.51 cubic inches

Therefore, the volume of the new globe would be 381.51 cubic inches, which is half the volume of the original globe.

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[tex]4^3\sqrt{-88}[/tex]


Help I don't know where the negative goes.

Answers

if you meant simplification

[tex]4^3\sqrt{-88}\implies 64\sqrt{-88}\implies 64\sqrt{(-1)(2^2)(2)(11)}\implies 64(2)\sqrt{(-1)(2)(11)} \\\\\\ 128\sqrt{(2)(11)}\cdot \sqrt{-1}\implies 128\sqrt{22}~i[/tex]

Solve for X. Round to the nearest tenth, if necessary.

Answers

The value of x to the nearest tenth is 1.4

What is trigonometric ratio?

Trigonometric Ratios are defined as the values of all the trigonometric functions based on the value of the ratio of sides in a right-angled triangle.

Sin(θ) = opp/hyp

cos(θ)= adj/hyp

tan( θ) = opp/adj

x is opposite side to angle F and 32 is adjascent to angle F.

therefore;

tan F = opp/adj

tan23 = x/3.2

x = tan23 × 3.2

x = 1.4

therefore the value of x to the nearest tenth is 1.4

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Prove that 5 to the power of 7 plus 5 to the power of 6 is divisible by 6

Answers

To prove that 5^7 + 5^6 is divisible by 6, we can factor out the common term 5^6 and apply the divisibility rule for 6. Here's the solution:

1. Factor out the common term 5^6:
5^7 + 5^6 = 5^6(5 + 1) = 5^6 * 6

2. Apply the divisibility rule for 6:
A number is divisible by 6 if it is divisible by both 2 and 3. Since 6 is already a multiple of 6 (6*1), the expression 5^6 * 6 is divisible by 6.

Thus, we have proved that 5^7 + 5^6 is divisible by 6.

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You want to estimate the number of people in a grocery store who buy milk. which sample is unbiased?group of answer choices70 shoppers at random as they leave the store8 shoppers as they enter the store60 women with children at random80 shoppers in the dairy section at random

Answers

80 shoppers in the dairy section at random is a biased sample (d).

To estimate the number of people who buy milk in a grocery store, we need an unbiased sample that represents the entire population. The options provided are 70 shoppers at random as they leave the store, 8 shoppers as they enter the store, 60 women with children at random, and 80 shoppers in the dairy section at random.

The most unbiased sample is selecting 80 shoppers in the dairy section at random because the dairy section is where people are most likely to buy milk, and selecting a random sample of shoppers in that section ensures that we are not introducing any biases.

The other options may introduce biases since they are not necessarily representative of the entire population of shoppers in the store. Therefore, selecting 80 shoppers in the dairy section at random provides the most unbiased estimate of the number of people who buy milk in the grocery store. So d is correct option.

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The first is kept by the albatross, which first lands in our region. The second occurs every night in shooting, swimming, fighting, singing and others. Separately, they would reveal many to you. Together, they will reveal only one to you. And whose one is it?

Answers

Based on the information provided, it is not clear what "they" refer to. However, it seems that there are two distinct events or phenomena being described here.

The first involves the albatross, which is known to be a migratory bird that visits certain regions at certain times of the year. It is unclear what exactly is being "kept" by the albatross, but it could be some sort of information or knowledge that is unique to this bird.

The second event or phenomenon is described as happening every night and involving various activities such as shooting, swimming, fighting, and singing.

It is unclear what this refers to exactly, but it could be some sort of nightly ritual or tradition that takes place in a particular community or region.

The statement that "separately, they would reveal many to you" suggests that each of these phenomena has its own unique insights or knowledge to offer.

However, the statement that "together, they will reveal only one to you" implies that there is some sort of deeper connection or meaning between these two events that is not immediately apparent.

The question of "whose one is it?" suggests that there is some sort of ownership or responsibility associated with this revelation.

It is unclear who this refers to, but it could be interpreted as asking who is responsible for uncovering the deeper meaning or connection between these two phenomena.

In summary, the information provided is somewhat cryptic and open to interpretation. However, it seems that there are two distinct events or phenomena being described, and that there is some sort of deeper connection or meaning between them that is not immediately apparent.

The question of who is responsible for uncovering this connection remains unanswered.

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The points (1,5), (5,10), (7,8), and (8,1) are on the graph of the function p. Which expression belo gives the average rate of change of the function p on 5 less than or equal x less than or equal 8

Answers

Answer:

Step-by-step explanation:

Since it is x that is bound by 5≤x≤8, you should use the points (5,10) and (8,1), since a coordinate is written as (x,y).

Then, use the formula for slope, as the average rate of change means find the slope, [tex]\frac{y2-y1}{x2-x1}[/tex]

thus, plug in

[tex]\frac{1-10}{8-5}[/tex], and you get -9/3, or -3. :)

What are the zeros of the function y = (x − 4)(x2 − 12x + 36)

Answers

The zeros of the function y = (x − 4)(x² − 12x + 36) are 4 and 6.

To find the zeros of the function y = (x - 4)(x² - 12x + 36), we need to set y to zero and solve for x.

0 = (x - 4)(x² - 12x + 36)

Now, solve for each factor separately:

1) x - 4 = 0
x = 4

2) x² - 12x + 36 = 0
This is a quadratic equation, and we can factor it as (x - 6)(x - 6).
So, x - 6 = 0
x = 6

The zeros of the function are x = 4 and x = 6. The zeros of a function are the values of its variables that meet the equation and result in the function's value being equal to 0.

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At a craft shop, a painter decided to paint a welcome sign to take home. An image of the sign is shown. A five-sided figure with a flat top labeled 5 and one-half feet. A height labeled 4 feet. The length of the entire image is 9 ft. There is a point coming out of the right side of the image that is created by two line segments. What is the area of the sign? 19 square feet 22 square feet 29 square feet 36 square feet Question 2(Multiple Choice Worth 2 points) (Volume of Rectangular Prisms MC) A family is building a sandbox for their yard that is shaped like a rectangular prism. They would like for the box to have a volume of 43,972.5 in3. If they already have the length measured at 71.5 inches and the width at 60 inches, what is the height needed to reach the desired volume? 5.25 inches 10.25 inches 131.5 inches 283.5 inches Question 3(Multiple Choice Worth 2 points) (Perimeter and Area on the Coordinate Plane MC) An office manager needs to cover the front face of a rectangular box with a label for shipping. The vertices of the face are (–8, 4), (4, 4), (–8, –2), and (4, –2). What is the area, in square inches, of the label needed to cover the face of the box? 18 in2 36 in2 60 in2 72 in2 Question 4(Multiple Choice Worth 2 points) (Perimeter and Area on the Coordinate Plane MC) The vertices of a rectangle are plotted in the image shown. A graph with the x-axis and y-axis labeled and starting at negative 8, with tick marks every one unit up to positive 8. There are four points plotted at negative 2, 6, then 3, 6, then negative 2, negative 3, and at 3, negative 3. What is the perimeter of the rectangle created by the points? 14 units 19 units 28 units 45 units Question 5(Multiple Choice Worth 2 points) (Volume of Rectangular Prisms MC) What is the volume of a rectangular prism with a length of fourteen and one-fifth yards, a width of 7 yards, and a height of 8 yards? seven hundred ninety-five and one-fifth yd3 seven hundred thirty-nine and one-fifth yd3 four hundred fifty-two and four

Answers

The area of the sign can be calculated by finding the area of the trapezoid shape. The formula for the area of a trapezoid is A = (1/2) * (base1 + base2) * height. In this case, the bases are 5.5 feet (half of 11 feet, which is the flat top of the five-sided figure) and 9 feet (the entire length of the image), and the height is 4 feet. Plugging these values into the formula, we get:

A = (1/2) * (5.5 + 9) * 4

A = (1/2) * 14.5 * 4

A = 7.25 * 4

A = 29

So, the area of the sign is 29 square feet.

The volume of a rectangular prism is calculated by multiplying its length, width, and height. In this case, the length is given as 71.5 inches, the width is given as 60 inches, and the volume is given as 43,972.5 in^3. We can solve for the height by dividing the volume by the product of the length and width:

Height = Volume / (Length * Width)

Height = 43,972.5 / (71.5 * 60)

Height ≈ 10.25 inches

So, the height needed to reach the desired volume is approximately 10.25 inches.

The area of the rectangular box face can be calculated by finding the length of the sides of the rectangle using the given coordinates, and then using the formula for the area of a rectangle, which is A = length * width. In this case, the length is the difference between the x-coordinates of the two points on the x-axis (4 - (-8) = 12) and the width is the difference between the y-coordinates of the two points on the y-axis (4 - (-2) = 6). Plugging these values into the formula, we get:

A = 12 * 6

A = 72

So, the area of the label needed to cover the face of the box is 72 square inches.

The perimeter of a rectangle is calculated by adding the lengths of all four sides. In this case, we can use the given coordinates of the four points to find the lengths of the sides. The length is the difference between the x-coordinates of the two points on the x-axis (3 - (-2) = 5) and the width is the difference between the y-coordinates of the two points on the y-axis (6 - (-3) = 9). Since the opposite sides of a rectangle have equal lengths, the perimeter is twice the sum of the length and width:

Perimeter = 2 * (Length + Width)

Perimeter = 2 * (5 + 9)

Perimeter = 2 * 14

Perimeter = 28

So, the perimeter of the rectangle created by the points is 28 units.

The volume of a rectangular prism is calculated by multiplying its length, width, and height. In this case, the length is given as 14.2 yards (14 and one-fifth yards), the width is given as 7 yards, and the height is given as 8 yards. Plugging these values into the formula, we get:

Volume = Length * Width * Height

Volume = 14.2 * 7 * 8

Volume ≈ 795.2

So, the volume of the rectangular prism is approximately 795.2 cubic yards. Answer: seven hundred ninety-five and one-fifth yd3

Your local dry cleaners is running a special. The dry cleaner is offering a 13% discount for any drop off that is over $40. Also, they are running a neighborhood special of an additional 5% off. Given this information, determine the decay factor corresponding to each percent decrease. A. 34. 8; 33. 06 c. 0. 87; 0. 95 b. 0. 384; 0. 3306 d. 87; 95

Answers

The decay factor corresponding to each percent decrease is 0.87. The correct option is c. The customer would save a total of $17.35, or 17.35% off the original price.

To determine the decay factor corresponding to each percent decrease, we need to use the formula:

decay factor = (100% - percent decrease)/100%

For the first discount of 13%, the decay factor would be:

decay factor = (100% - 13%)/100% = 0.87

For the additional neighborhood discount of 5%, the decay factor would be:

decay factor = (100% - 5%)/100% = 0.95

So the correct answer is option C, with a decay factor of 0.87 for the 13% discount and 0.95 for the neighborhood discount.

These decay factors represent how much of the original price is left after the discount has been applied. For example, if the original price was $100, after the 13% discount, the price would be:

price after first discount = $100 x 0.87 = $87

Then, after the additional 5% discount, the final price would be:

final price = $87 x 0.95 = $82.65

So the customer would save a total of $17.35, or 17.35% off the original price.

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The expected increase (I) of a population of organisms is directly proportional to the current population (n). If a sample of 240 organisms increases by 20, by how many will a population of 600 increase?

Answers

A population of 600 organisms is expected to increase by 50.

To solve this problem

We can use the equation I = k * n to determine whether the anticipated growth (I) of an organism population is directly related to the size of the current population (n).

Where k is a proportionality constant that connects the anticipated growth to the current population.

We can use the details provided in the problem to determine the value of k. We can write: 20 = k * 240 to represent an increase of 20 in a sample of 240 organisms.

We can calculate k as follows: k = 20 / 240 = 1 / 12.

Now that we know the value of k, we can use it to calculate the predicted growth for a population of 600:

I = (1 / 12) * 600 = 50

Therefore, a population of 600 organisms is expected to increase by 50.

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"Francine made 11 long distance calls in March. The calls ranged from 11 minutes to 25 minutes in length. If Francine pays 0. 99 per minute for long distance calls, which is the closest to the total cost of her calls?"

Answers

The closest value to the total cost of Francine's calls is $191.07

To find the total cost of Francine's calls, we need to know the total number of minutes she spent on the phone. We can calculate this by adding up the lengths of all 11 calls:

Total minutes = 11 + 14 + 12 + 20 + 25 + 16 + 11 + 22 + 18 + 19 + 15 = 193

The total cost of Francine's calls can then be found by multiplying the total number of minutes by the cost per minute:

Total cost = 193 * 0.99

= 191.07

Therefore, the closest value to the total cost of Francine's calls is $191.07.

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Consider the three points P (3,0,0), Q (0,0,-9), and R (0, -6,0). (a) Find a non-zero vector orthogonal to the plane through the points P, Q, and R. (b) Find the area of the parallelogram with sides PQ and PR.

Answers

(a) To find a non-zero vector orthogonal to the plane through the points P, Q, and R, we need to take the cross product of two vectors in the plane. One way to do this is to subtract one point from another to get a vector, and then take the cross product of the two resulting vectors. For example, we could subtract point Q from point P to get the vector PQ, and subtract point R from point P to get the vector PR. Then, taking the cross product of PQ and PR will give us a vector orthogonal to the plane:PQ = <-3, 0, -9>PR = <-3, -6, 0>PQ x PR = <54, 27, 18>Therefore, the vector <54, 27, 18> is orthogonal to the plane through the points P, Q, and R.(b) To find the area of the parallelogram with sides PQ and PR, we need to find the length of the projection of PQ onto PR, and then multiply by the length of PR. The projection of PQ onto PR is given by:proj_PR(PQ) = (PQ · u) uwhere u is a unit vector in the direction of PR, and · denotes the dot product. Since PR = <-3, -6, 0>, we can take u = <-1/sqrt(10), -3/sqrt(10), 0>, which is a unit vector in the direction of PR. Then:proj_PR(PQ) = (PQ · u) u = (-3/sqrt(10)) <-1/sqrt(10), -3/sqrt(10), 0> = <9/10, 27/10, 0>The length of this vector is sqrt((9/10)^2 + (27/10)^2 + 0^2) = 3sqrt(10), so the area of the parallelogram is:A = |PQ| |proj_PR(PQ)| = sqrt((-3)^2 + 0^2 + (-9)^2) * 3sqrt(10) = 27sqrt(10)

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A. Orthogonal vector = (0, -27, 18)

B. The area of the parallelogram with sides PQ and PR is 1053 square units.

(a) To find a non-zero vector orthogonal to the plane through points P, Q, and R, we need to compute the cross product of vectors PQ and PR.

Vector PQ = Q - P = (-3, 0, -9)
Vector PR = R - P = (-3, -6, 0)

Cross product PQ x PR = (i, j, k) × ((-3, 0, -9), (-3, -6, 0))
= i(0 * 0 - (-9) * (-6)) - j(-3 * 0 - (-3) * (-9)) + k(-3 * -6 - 0 * (-3))
= i(0) - j(27) + k(18)
Orthogonal vector = (0, -27, 18)

(b) To find the area of the parallelogram with sides PQ and PR, we can use the magnitude of the cross product of PQ and PR.

Magnitude of PQ x PR = ||(0, -27, 18)||
= √(0^2 + (-27)^2 + 18^2)
= √(729 + 324)
= √1053

The area of the parallelogram with sides PQ and PR is 1053 square units.

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Find the quotient of 1x10^-2 and 8x10^-2

Answers

Answer:

The first one is - 5 and the other is - 40

Identify the parent function for g(x) = (x + 3)^2 and describe the transformation.

Answers

The resulting graph of g(x) will resemble the graph of f(x), but it will be stretched vertically and pushed leftward by three units.

What is function?

Each element of a set (referred to as the domain) is mapped by a rule known as a function to a particular element of this other set (called the range). A function is, in other words, a connection between two subsets in which every member of the domain has a unique relationship to every element of the range. One popular approach to write a function is via function notation, which entails writing the function name surrounded by the incoming signal in parentheses, as in the following example: f (x). For instance, the formula f(x) = 2x + 1 takes the input x and produces the result 2x + 1.

given,

The fundamental quadratic function f(x) = x² serves as the parent function for g(x) = (x + 3)².

Since the argument of the function (x + 3) is x shifted left by 3 units, the graph of f(x) is horizontally displaced to the left by 3 units.

Given that the coefficient of the squared term is 1, the graph of the resulting function is shifted up by a factor of 1.

As a result, the transformation can be represented as a 3 unit horizontal shift and a 1 unit vertical stretch.

The resulting graph of g(x) will resemble the graph of f(x), but it will be stretched vertically and pushed leftward by three units.

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|x-3|+|x+2|-|x-5| if 3
|x-3|+|x+2|-|x-5| if x<-2

|x-3|+|x+2|-|x-5| if -2

pls help

i will give brainliest

Answers

|x-3|+|x+2|-|x-5| can be broken down into three separate cases based on the value of x:

(x-3) + (x+2) - (x-5) = 2x + 4

(x-3) + (x+2) - (5-x) = 2x - 6

-(x-3) - (x+2) - (5-x) = -3x - 4

We break down the expression into three separate cases based on the value of x. This is because the absolute value function creates "turning points" at which the behavior of the expression changes. We analyze the expression for each case and simplify it to obtain the final answer. The answer depends on the value of x, and we must consider the expression separately for each case.

If x ≥ 5, then the expression becomes:

(x-3) + (x+2) - (x-5) = 2x + 4

If -2 ≤ x < 3, then the expression becomes:

(x-3) + (x+2) - (5-x) = 2x - 6

If x < -2, then the expression becomes:

-(x-3) - (x+2) - (5-x) = -3x - 4

Therefore, the final answer depends on the value of x. If x is greater than or equal to 5, then the answer is 2x + 4. If x is between -2 and 3, then the answer is 2x - 6. And if x is less than -2, then the answer is -3x - 4.

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25 points help asap

will mark brainiest




select the correct answer from each drop-down menu.


a lake currently has a depth of 30 meters. as sediment builds up in the lake, its depth decreases by 2% per year


this situation represents _____


the rate of growth or decay,r, is equal to _____


so the depth of the lake each

year is ______ times the depth in the previous year,


it will take between _____

years for the depth of the lake to reach 26. 7 meters

Answers

It will take approximately 5.28 years for the depth of the lake to reach 26.7 meters.

How to find the lake depth decay?

The situation represents decay because the depth of the lake decreases over time.

The rate of growth or decay, r, is equal to -0.02 (negative because it represents a decrease of 2% per year).

So the depth of the lake each year is 0.98 times the depth in the previous year (100% - 2% = 98%).

To find the number of years it will take for the depth of the lake to reach 26.7 meters, we can use the formula for exponential decay:

26.7 = 30 *[tex](0.98)^n[/tex]

Solving for n, we get:

[tex](0.98)^n = \frac{26.7 }{ 30}[/tex]

n =[tex]log\frac{(\frac{26.7}{30}) }{ log(0.98)}[/tex]

Using a calculator, we find n ≈ 5.28 years.

Therefore, it will take approximately 5.28 years for the depth of the lake to reach 26.7 meters.

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A marine biologist is researching the population density of manatees. The marine biologist counts 550 manatees within a radius of 5 miles of a half circle off of Crystal Bay. What is the population density of the manatees? Use 3. 14 for pi, and round to the nearest whole number

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The population density of manatees within a radius of 5 miles of a half circle off of Crystal Bay is approximately 14 manatees per square mile

The population density of manatees within a radius of 5 miles of a half circle off of Crystal Bay is approximately 70 manatees per square mile. To calculate this, we first need to find the area of the half circle. Using the formula for the area of a circle, A=πr^2, where r is the radius, we can find the area of the full circle with a radius of 5 miles:

A = 3.14 x 5^2
A = 78.5 square miles

Since we only want to consider the area of the half circle, we divide this by 2:

A = 78.5 / 2
A = 39.25 square miles

Now we can calculate the population density by dividing the number of manatees by the area:

Density = 550 / 39.25
Density ≈ 14

Therefore, the population density of manatees within a radius of 5 miles of a half circle off of Crystal Bay is approximately 14 manatees per square mile. Rounded to the nearest whole number, this is 14.

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Solve for f(-2).
f(x) = -3x + 3
f(-2) = [?]

Answers

Answer:

f(-2) = 9

Step-by-step explanation:

f(x) = -3x + 3                  Solve for f(-2).

f(-2) = -3(-2) + 3

f(-2) = 6 + 3

f(-2) = 9

Andrew invests $500 into an account with a 2. 5% interest rate that is compounded quarterly. How much money will he have in this account if he keeps it for 5 years?

Round your answer to the nearest dollar

Answers

He will have $566 in this account if he keeps it for 5 years.

How to determine how much money he will have in this account?

To determine how much money he will have in this account if he keeps it for 5 years, we can use the compound interest formula:

A = P(1 + r/n)^(nt)

Where:

A = the final amount

P = the principal, $500

r = the interest rate, 2.5% = 0.025

n = the number of times the interest is compounded per year, in this case quarterly (n = 4)

t = the time period in years, 5

Substituting the values :

A = 500(1 + 0.025/4)^(4 * 5)

A = 500(1 + 0.00625)²⁰

A = 500(1 .00625)²⁰

A = $566

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