need help with this and the writing part

The surface area of the rectangular prism with the given dimensions is 540yd².

To find the surface area (sa) of the rectangular prism with the given dimensions, we need to calculate the area of each face and add them together.

The formula for the area of a rectangle is length multiplied by width (A = l x w).

Face 1 has a length of 5yd and a width of 37yd, so its area is 5 x 37 = 185yd².
Face 2 has a length of 5yd and a width of 20yd, so its area is 5 x 20 = 100yd².
Face 3 has a length of 5yd and a width of 51yd, so its area is 5 x 51 = 255yd².

To find the total surface area, we add the areas of all three faces:

sa = area of face 1 + area of face 2 + area of face 3
sa = 185yd² + 100yd² + 255yd²
sa = 540yd²

Therefore, the numerical value of the surface area of the rectangular prism with the given dimensions is 540yd².

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The explicit equation for the sequence 7, 10, 13, 16,... is an = 7 + 3n.

To find the explicit equation for the sequence 7, 10, 13, 16,..., we first need to identify the common difference.The common difference is the difference between any two consecutive terms in the sequence.

In this case, the common difference d is 10 - 7 = 3, 13 - 10 = 3, 16 - 13 = 3, and so on.

Next, we can use the formula for the nth term of an arithmetic sequence to find the explicit equation. The formula is:

an = a1 + (n - 1)d

where,

an = the nth term of the sequence

a1 = the first term of the sequence

d = the common difference

n = the number of the term we want to find

Since the sequence starts at x=0, we can rewrite the formula as: an = a0 + nd,

where a0 = 7 and d = 3.

Therefore, the explicit equation for the sequence is an = 7 + 3n

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The volume of the soccer ball to the nearest cubic inch is 125 cubic inches.

To find the volume of Sydney's soccer ball, we will use the formula for the volume of a sphere, which is V = (4/3)πr³, where V is the volume, r is the radius, and π is a constant (approximately 3.14).

First, we need to find the radius (r) of the soccer ball. Since the diameter is given as 6.2 inches, we can find the radius by dividing the diameter by 2: r = 6.2 / 2 = 3.1 inches.

Now we can plug the values into the volume formula:
V = (4/3)π(3.1)³
V ≈ (4/3)(3.14)(29.791)

Next, we calculate the volume:
V ≈ 124.72

Finally, we round the volume to the nearest cubic inch, which is approximately 125 cubic inches.

So, the volume of Sydney's soccer ball with a diameter of 6.2 inches is approximately 125 cubic inches when using π = 3.14.

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Answer:

Step-by-step explanation:

33

As a result, the function's absolute maximum and minimum values are 5 and -45, respectively, at x = -5 and x = 2, respectively.

Every element in a set (referred to as the domain) in mathematics is connected by a rule known as a function to exactly one component in some other set (called the range or codomain). In other terms, a role is a connection among 2 sets where every element in the domain matches exactly one member in the range. Using a formula or equation with a variable input, function notation is a common way to represent functions. As an illustration, the formula f(x) = 2x + 1 gives each true figure x the value 2x + 1.

given

We can apply the second derivative test to determine whether this critical point is a maximum or minimum. By taking f'(xderivative, )'s we arrive at:

f''(x) = -4

The critical point at x = 0 is a local maximum since f"(0) = -4 is a negative value.

Secondly, we must determine whether the interval's endpoints of -5 x 2 provide values that are higher or lower than the crucial point. By entering x = -5 and x = 2, we obtain:

[tex]f(-5) = 5-2(-5) (-5)^2 = 5 – 50 = -45[/tex]

[tex]f(2) = 5 - 2(2) (2)^2 = -3[/tex]

As a result, the function's absolute maximum and minimum values are 5 and -45, respectively, at x = -5 and x = 2, respectively.

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The probability that exactly five of the students were born on a weekend is 0.1514.

Assuming that the probability of being born on a weekend is the same for all students,

we can model the number of students born on a weekend as a binomial random variable with parameters n = 7 (number of trials) and p = 2/7 (probability of success, i.e., being born on a weekend).

The probability of exactly five students being born on a weekend can be calculated using the binomial probability formula:

P(X = 5) = (7 choose 5) * (2/7)^5 * (5/7)^2

where (7 choose 5) = 7! / (5! * 2!) is the number of ways to choose 5 out of 7 students.

Evaluating this expression gives:

P(X = 5) = (7 choose 5) * (2/7)^5 * (5/7)^2

= 21 * (0.0408) * (0.1837)

= 0.1514 (rounded to four decimal places)

Therefore, the probability that exactly five of the seven students were born on a weekend is approximately 0.1514.

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Alissa's new fish tank should hold 35 gallons of water.

"Gallons" is a unit of measurement for volume, typically used to measure liquids or gases. It is commonly abbreviated as "gal" and is equivalent to 3.785 liters in the metric system.

Alissa's old fish tank holds 20 gallons of water. To find out how many gallons of water her new fish tank should hold, we need to multiply the old tank's capacity by 175% or 1.75 (since 175% = 1.75 as a decimal).

So, the new tank's capacity should be:

20 gallons x 1.75 = 35 gallons

Therefore, Alissa's new fish tank should hold 35 gallons of water.

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Given the sequence an = n^7/n^4, The sequence is = divergent. So, the answer is that the sequence is divergent.

The sequence an = n^7/n^4 can be simplified by cancelling out the common factor of n^4 in the numerator and denominator. This yields an = n^3.

Therefore, the sequence is simply the cubes of the positive integers, or 1, 8, 27, 64, 125, 216, ... and so on. This sequence grows without bound, as n gets larger, so it does not converge to any finite limit. In other words, the sequence an does not have a limit, and it is divergent.

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"IF THERE BASES ARE SAME POWER WILL BE ADD"

4^6+2=4^8 THAT IS AN ERROR

The daily newspaper has the most users among those surveyed.

To determine which news source has the most users, we need to compare the percentages of those who use each source.

According to the survey:

55% get news from local television station

60% get news from daily newspaper

40% get news from the internet

To compare these percentages, we can either convert them to fractions or decimals. Let's convert them to decimals:

55% = 0.55

60% = 0.60

40% = 0.40

Now we can compare them directly. We see that the source with the highest percentage is the daily newspaper, with 60% of those surveyed saying they get news from it. Therefore, the daily newspaper has the most users among the surveyed population.

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Answer:

It is not true since 9x - 3x = 6x and

3x(3) = 9x.

Answer:

Not true b/c

Step-by-step explanation:

9x-3x=6x

and3x(3)=9x

6x is not equal to 9x

The hire purchase price for the video recorder is 3,133.20.

To calculate the hire purchase price for the video recorder, follow these steps:

1. Calculate the initial deposit: 20% of the cash price (2,700) is (0.20 * 2,700) = 540.
2. Subtract the deposit from the cash price to get the outstanding balance: (2,700 - 540) = 2,160.
3. Calculate the interest for one year on the outstanding balance: 18% of 2,160 is (0.18 * 2,160) = 388.80.
4. Divide the interest by 12 to find the interest per month: (388.80 / 12) = 32.40.
5. Add the interest per month to the outstanding balance: (2,160 + 32.40 * 12) = 3,133.20.
6. The hire purchase price is 3,133.20, which is the total amount payable in 12 equal monthly instalments.

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Complete question:

A housewife purchased a videorecorder with a cash price of 8 2 700 under hire purchase terms She paid an initial deposit of 20% of the cash price and interest at 18% per annum on the outstanding balance is Charged. The Jamount payable is paid in 12 equal monththly instalments Calculate for the video recorder  The hire purchase price​

8:10

subtract 20min from 30 min

30-20=10

Answer: He should move at 8:10

Explanation:  10 + 20 = 30  /  30 - 20 = 10

Therefore he should leave at 8:10

5.490490490 can be expressed as the ratio of integers 5485/999. Hi! To express the given number as a ratio of integers, we need to find two integers that represent the given repeating decimal.

The number 5.490490490 can be written as 5.490(490 repeating). To convert the repeating part into a ratio, we can use the following method:

Let x = 0.490490...
Multiply x by 1000 (since there are 3 digits in the repeating part):
1000x = 490.490490...

Subtract the original x from the 1000x equation:
1000x - x = 490.490490... - 0.490490...
999x = 490
Now, divide both sides by 999:
x = 490/999

So, the repeating decimal 0.490490... can be represented as the ratio 490/999. To express the entire number as a ratio of integers, add the non-repeating part (5) to the ratio:

5 + (490/999) = (5 * 999 + 490) / 999 = (4995 + 490) / 999 = 5485/999.

Your answer: 5.490490490 can be expressed as the ratio of integers 5485/999.

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The value of the function at x = 7, f(7) on the graph is 2, therefore;

f(7) = 2

A function is a rule or defines that maps an input munto an output.

The evaluation of the function using the graph of the function can be performed by drawing a vertical line at the point of the corresponding input or x-value, and reading the point of intersection of the vertical line and the point on the graph, as follows;

f(7) = The value of the function at x = 7

The vertical line at x = 7, intersects the graph at the point f(7) = 2

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The coordinates of point M come out to be 4.8, 4.4

This case is solved by using the section formula which states that

The coordinate of point P that divides the line segment AB in the ratio of m:n where the coordinate of A is [tex]x_1,y_1[/tex] and the B is [tex]x_2,y_2[/tex] is described as

[tex]\frac{mx_2+nx_1}{m+n}[/tex],[tex]\frac{my_2+ny_1}{m+n}[/tex]

The line to be divided = PQ

Coordinates of P = (6,2)

Coordinates of Q = (3,8)

Ratio = 2:3

Thus, the coordinates of M = [tex]\frac{2*3+3*6}{2+3}[/tex],[tex]\frac{8*2+2*3}{2+3}[/tex]

= 24/5 , 22/5

= 4.8, 4.4

Point M with coordinates (4.8,4.4) lies on PQ and divides the segment so that the ratio of PM-MQ is 2-3

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The value of x is 16.

Given,

The m line is parallel with the n line.

We need to find the value of x.

If two lines are parallel the corresponding angles are congruent.

Example:                              

                         [tex]\sf D[/tex] /

                          /

[tex]\sf A[/tex]<----------------[tex]\sf F[/tex]/----------------------->[tex]\sf B[/tex]

                      /

[tex]\sf C[/tex] <-----------[tex]\sf M[/tex]/------------------------------>[tex]\sf D[/tex]                    

                  /

            [tex]\sf E[/tex]  /

[tex]\sf AFD = CMF[/tex]

[tex]\sf AFM = CME[/tex]

From the figure, we see that

[tex]\sf 8x + 5 + 4x - 17 = 180[/tex]

[tex]\sf 12x - 12 = 180[/tex]

[tex]\sf 12x = 180 + 12[/tex]

[tex]\sf 12x = 192[/tex]

[tex]\sf x = \dfrac{192}{12}[/tex]

[tex]\sf x = 16[/tex]

Thus the value of x is 16.

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The amount of water that flows out of the tank during the first m minutes is given by the expression 200m - 2m², where m is the number of minutes.

The rate of water flowing from the bottom of the storage tank is given by r(t) = 200 - 4t, where t is the time in minutes. To find the amount of water that flows out of the tank during the first m minutes, we need to integrate the rate function from t = 0 to t = m:

Amount of water = ∫₀ₘ (200 - 4t) dt
Evaluating this integral, we get:
Amount of water = [200t - 2t²] from t = 0 to t = m
Amount of water = (200m - 2m²) - (0 - 0)

Simplifying this expression, we get:
Amount of water = 200m - 2m²

Therefore, the amount of water that flows out of the tank during the first m minutes is given by the expression 200m - 2m², where m is the number of minutes.

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The interest rate necessary for an investment to quadruple after 6 years of continuous compound interest is approximately 23.105%.

To find the interest rate necessary for an investment to quadruple after 6 years of continuous compound interest, we will use the formula for continuous compounding:

A = P * e^(rt)

where:
A = final amount (quadruple the initial investment)
P = initial principal amount
r = interest rate (the value we need to find)
t = time (6 years in this case)
e = base of the natural logarithm (approximately 2.718)

Since the investment needs to quadruple, we have A = 4P. Now, we can substitute the values into the formula:

4P = P * e^(r * 6)

Divide both sides by P:

4 = e^(6r)

To solve for r, take the natural logarithm (ln) of both sides:

ln(4) = ln(e^(6r))

Using the property of logarithms, we can rewrite this as:

ln(4) = 6r

Now, divide by 6 to isolate r:

r = ln(4) / 6

Using a calculator, we find:

r ≈ 0.231049 (or 23.105% when expressed as a percentage)

So, the interest rate necessary for an investment to quadruple after 6 years of continuous compound interest is approximately 23.105%.

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It sounds like Leo will be using a specific type of random number generator that produces only five possible outcomes: 1, 2, 3, 4, or 555. It seems that the generator produces a repeating pattern of four numbers (1, 2, 3, 4) followed by a fifth number (555).

If Leo uses this generator 400400400 times, then he will get 100100100 repetitions of the pattern. This means that he will get 100100100 x 4 = 400400400 numbers 1, 2, 3, or 4, and 100100100 occurrences of the number 555.

It is important to note that this type of random number generator is not truly random, as it is not generating numbers with equal probability. Instead, it is producing a predetermined sequence of numbers. This means that if Leo knows the pattern, he could predict the next number that will be generated with certainty.

In general, it is important to use truly random number generators for many applications, such as cryptography or scientific simulations, where the results need to be unpredictable and unbiased.

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Answer: y = 1.4

Step-by-step explanation:

if you write the equation it would be

-5y - 4 = -11

so first you would subtract 4 from -4 and -11 to cancel out the four.

so your equation would look like this -5y= -7

so now u would divide -5 by both sides to canceled out the -5

your equation should end up looking like

y=1.4

Answer:

18.84 kilometers

Step-by-step explanation:

Formula for circumference:  C=2πr

1) find radius

r = d / 2

In this case the diameter is 6 so:

r = 6 / 2

r = 3

2. Plug in your values in the formula:

C = 2 (3.14) (3)

3. Solve (multiply)

C = 2 x 3.14 x 3

C = 18.84

So your answer is 18.84 kilometers, and rounded its 19 kilometers.

Hope this helps :D

The surface area is 72 square inches.

To find the surface area of a square pyramid, we need to calculate the area of the base and the four triangular faces.

Given that the base is 4 inches wide, the area of the square base is:
Base area = side² = 4² = 16 square inches.

The slant height is 7 inches. To find the area of one triangular face, we use:
Triangle area = (base * slant height) / 2

Each triangle has the same base length as the square base, which is 4 inches. Therefore, the area of one triangular face is:
Triangle area = (4 * 7) / 2 = 14 square inches.

Since there are four triangular faces, their total area is:
4 * Triangle area = 4 * 14 = 56 square inches.

Finally, add the base area and the total area of the triangular faces to get the surface area:
Surface area = Base area + Total triangular faces area = 16 + 56 = 72 square inches.

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The total area of the composite figure is 1650 mm

To find the area of a composite figure, you need to break it down into simpler shapes whose areas you can calculate and then add up the individual areas. In this case, the composite figure consists of two shapes: a rectangle and a trapezoid.

To find the area of the rectangle, you multiply its length by its width. From the given dimensions, the length of the rectangle is 40 mm and the width is 30 mm. So the area of the rectangle is 40 x 30 = 1200 mm².

To find the area of the trapezoid, you use the formula for the area of a trapezoid: (base1 + base2) x height / 2. From the given dimensions, the two bases of the trapezoid are 25 mm and 35 mm, and the height is 15 mm. So the area of the trapezoid is (25 + 35) x 15 / 2 = 450 mm².

Now you add the areas of the two shapes together to get the total area of the composite figure: 1200 + 450 = 1650 mm².

Therefore, the total area of the composite figure is 1650 mm², rounded to the nearest hundredth.

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The population in 4 year is 160 and in 6 year is 320.

The population is grows by a factor of 2 every two years.

We can use the following formula to get the rate of population growth every two years:

Growth factor: (population after n years / (population after (n-2) years) ^ 1/2

This formula can be used to determine the growth factor as follows:

Growth factor is equal to (40/10)*(1/2) = 2

This indicates that every two years, the population increases by a factor of 2.

Then, for 4 year the population

= 10 x 2⁴

= 10 x 16

= 160

For 6 year the population is

= 10 x 2⁶

= 10 x 32

= 320

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Answer:

Approx 67.24%

Step-by-step explanation: If the Atlanta Hawks' free-throw percentage is 82%, the probability that a player will make one free throw is 0.82.

To find the probability that a player will make two free throws in a row, we can use the multiplication rule of probability which states that the probability of two independent events occurring together is the product of their individual probabilities.

Therefore, the probability of a player making two free throws in a row can be calculated as follows:

P(making two free throws in a row) = P(making first free throw) x P(making second free throw)

P(making two free throws in a row) = 0.82 x 0.82

P(making two free throws in a row) = 0.6724 or 67.24%

Therefore, the probability that a player for the Atlanta Hawks will make two free shots in a row is approximately 67.24%

Answer:

Step-by-step explanation:

The correct answer is:

the initial height of the plant

The y-intercept represents the point where the graph intersects the y-axis. In the context of a relationship between plant growth and time, the y-intercept would represent the initial height of the plant, which is the height of the plant at the start of the experiment, before any growth has occurred.

a. The correlation between temperature and yield is 0.63, between stirring rate and yield is 0.05, and between temperature and stirring rate is -0.01.

b. The data suggest that increasing temperature causes yield to increase, but confounding variables cannot be ruled out.

c. The data do not provide strong evidence that increasing stirring rate causes yield to increase, and confounding variables cannot be ruled out.

a. To compute the correlation between temperature and yield, stirring rate and yield, and temperature and stirring rate, we can use the Pearson correlation coefficient.

The correlation between temperature and yield is 0.61, indicating a moderate positive correlation. The correlation between stirring rate and yield is 0.02, indicating a weak positive correlation. The correlation between temperature and stirring rate is -0.43, indicating a moderate negative correlation.

b. The correlation between temperature and yield suggests that increasing the temperature may lead to an increase in yield. However, we cannot conclude that this relationship is causal as there may be other factors (e.g., stirring rate) that are confounding the relationship. To establish a causal relationship, we would need to conduct a controlled experiment where we manipulate temperature while keeping other factors constant.

c. The correlation between stirring rate and yield is weak, and it is difficult to draw strong conclusions from this relationship. It is possible that the relationship is due to confounding factors such as temperature or other unmeasured variables. Further experimentation is needed to establish a causal relationship between stirring rate and yield.

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The general solution is then [tex]y(x) = y_c(x) + yp(x) = c1 e^√2x + c2 e^-√2x - 3/2 cot^3 x.[/tex]

To find the general solution for the nonhomogeneous equation [tex]y'' = 2y + 12 cot^3x[/tex] with particular solution

yp(x) = 6 cotx, we can use the method of undetermined coefficients.

First, we need to find the complementary function, which is the general solution to the homogeneous equation y'' = 2y. The characteristic equation is r² - 2 = 0, which has roots r = ±√2.

Therefore, the complementary function is[tex]y_c(x) = c1 e^√2x + c2 e^-√2x.[/tex]

Next, we need to find a particular solution yp(x) to the nonhomogeneous equation. Since the right-hand side is 12 cot^3 x, we can guess a solution of the form [tex]yp(x) = a cot^3 x.[/tex] Taking the first and second derivatives of this, we get

[tex]yp''(x) = -6 cotx - 18 cot^3 x and yp'''(x) = 54 cot^3 x + 54 cotx.[/tex]

Substituting these into the original equation, we get:

[tex](-6 cotx - 18 cot^3 x) = 2(a cot^3 x) + 12 cot^3 x-6 cotx = 2a cot^3 x[/tex]
a = -3/2

Therefore, the particular solution is[tex]yp(x) = -3/2 cot^3 x.[/tex]

The general solution is then [tex]y(x) = y_c(x) + yp(x) = c1 e^√2x + c2 e^-√2x - 3/2 cot^3 x.[/tex]

So the final answer is [tex]y(x) = y_c(x) + yp(x) = c1 e^√2x + c2 e^-√2x - 3/2 cot^3 x.[/tex]

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