Mathematics College


Find f'(-2) if f(x) = x^4/5 - 7x.


f'(-2) = ?
(Simplify your answer. Type an integer or a fraction.)

Find F'(-2) If F(x) = X^4/5 - 7x.f'(-2) = ?(Simplify Your Answer. Type An Integer Or A Fraction.)

Answers

Answer 1

Answer:

15.74

Step-by-step explanation:

[tex] {x}^{ \frac{4}{5} } - 7x[/tex]

Substitute - 2 for x.

[tex] { (- 2)}^{ \frac{4}{5} } - 7( - 2)[/tex]

[tex] \sqrt[ 5]{ { (- 2) }^{4} } - 7( - 2)[/tex]

[tex]1.74 + 14[/tex]

[tex]15.74[/tex]

(I rounded to the nearest hundredth).

Related Questions

The town’s highway department marks a new road with reflective markers. The road is on a 6 3/4 miles stretch in length. How many markers would be needed if  the markers are spaced every  1/8 of a mile?​

Answers

Answer:

54 markers.  

Step-by-step explanation:

First take 6 3/4 which also equals .75 and 1/8 which also equals .125. Now divide 6.75 by 0.125 which equals 54.

If a car is traveling 75 miles per hour, how many feet will it travel in 10 seconds ?

Answers

The answwe is 1100 hope this helps

If 1 mile= 5280 feet, So If a car is traveling 75 miles per hour, then it is travelling 1100 feet in 10 seconds.

What is 1 mile in ____ feet?

1 mile= 5280 feet

A car is traveling 75 miles per hour, we need to find how many feet it travel in 10 sec.

1 hour = 60*60 = 3600 seconds

75 miles: 1 hour

75 miles: 3600 seconds

75/3600 miles: 3600/3600 seconds

1 second: 1/48 mile

1/48 miles = (1/48)*5280 = 110 feet

So you're going 110 ft per second. In other words, the car travels 110 feet in 1 second.

For 10 seconds 110*10=1100.

Therefore 1100 feet will car travel in 10 seconds.

To learn more on miles and feet click: https://brainly.com/question/2566034

#SPJ2

Question 2 (10 points) (02.05 MC) Triangle PQR is transformed to triangle P′Q′R′. Triangle PQR has vertices P(8, 0), Q(6, 2), and R(−2, −4). Triangle P′Q′R′ has vertices P′(4, 0), Q′(3, 1), and R′(−1, −2). Plot triangles PQR and P′Q′R′ on your own coordinate grid. Part A: What is the scale factor of the dilation that transforms triangle PQR to triangle P′Q′R′? Explain your answer. (4 points) Part B: Write the coordinates of triangle P′′Q′′R′′ obtained after P′Q′R′ is reflected about the y-axis. (4 points) Part C: Are the two triangles PQR and P′'Q′'R′' congruent? Explain your answer. (2 points)

Answers

Answer: From R:(c, d), draw line segment RA perpendicular to the x-axis. Let O denote the origin (0,0).

area ΔPQR = area trapezoid OPRA- area ΔQAR - area ΔOPQ

=

2

1

c(a+d) -

2

1

d(c−b)-

2

1

ab=

2

1

(ac+bd−ab).

If c area ΔPQR = area trapezoid OPRA + area Δ QAR - areaΔOPQ=

2

1

c(a+d)

2

1

d(b−c)−

2

1

ab=

2

1

(ac+bd−ab).

Step-by-step explanation: done

if angle two equals 130 find the measure of angle 6 in the answer is not 130 or 50 wilmart brainiest ​

Answers

Answer:

∠6 = 130°

Step-by-step explanation:

the answer is 130.. because its a corresponding angles

that means corresponding angles are equal

∠2 = ∠6 = 130°

find the slope of each line​

Answers

I don’t think there is one

After multiplying, a calculator screen displays the answer shown below. How would you write this number in standard form?


Make sure to include commas in answer


8.234 E14

Answers

i’m pretty sure the answer is 8,234 x 10^-3

(x-3) (x2+2x+1)
Foil method

Answers

Step-by-step explanation:

(x-3)(x^2+2x+1)

=x^3-3x^2+2x^2-6x+x-3

=x^3+2x^2-3x^2-6x+x-3

=x^3-x^2-5x-3

___________

4. A statistician working for the National Basketball Association supplies the television announcers with interesting statistics. At a certain point in the season, he discovered that in 375 games, 300 were won by the team that was winning the game at the end of the third quarter. The margin of error in a 90% confidence interval estimate of the true proportion of games won by the team leading at the end of the third quarter with the plus-4 adjustment applied is (Show work): (5)

Answers

Answer: 0.038

Step-by-step explanation:

Given: Total games : n= 375

Number of games won by  the team that was winning the game at the end of the third quarter. = 300

The proportion (p) of the team that was winning the game at the end of the third quarter: [tex]p=\dfrac{300}{375}=0.8[/tex]

Critical z-value for 90% confidence: z* = 1.645

Margin of error =[tex]z^*\sqrt{\dfrac{(1-p)p}{n}}[/tex]

The margin of error in a 90% confidence interval estimate of p [tex]=1.645\sqrt{\dfrac{0.2\times0.8}{300}}\\= 1.645\times\sqrt{0.00053333}\\\\=1.645\times0.0231\\\\=0.0379995\approx$$0.038[/tex]

Hence, the required margin of error = 0.038


If it takes 930 kg of food to feed a pair
of elephants for 3 days, how much food
would you need to feed them for a week?

Answers

Answer:

2170

Step-by-step explanation:

930 divided be 3= 310

310 multiplied by 7=2170

Edward solved the equation 4X + 1 = 5x +(-5)
Add 4 negative both sides
Add 5 negative to both side
=4
What’s was mistake

Answers

Answer:

He should have added 5 to each side instead of -5

Step-by-step explanation:

4X + 1 = 5x +(-5)

Subtract 4x from each side

4X-4x + 1 = 5x-4x +(-5)

Combine like terms

1 = x-5

Add 5 to each side  

He should add 5 to each side ( we need to add the opposite of (-5)) to undo the adding  of (-5)

1+5 = x-5+5

6 =x

question 11 I mark as brainliest ​

Answers

Answer:

32

Step-by-step explanation:

Yes correct I did not know

Tyler is making a rectangular banner for his schools spirit day he strts by painting 1 half of the banner gray as shown what is the area of the part of the banner tyler painted

Answers

Answer:

Step-by-step explanation:

Where’s the banner that he’s painting

there is no picture...so i can’t do further explanation.

Which inequality would result in the shaded solution on the unit circle to the right?

Answers

The inequality that would result in the shaded solution on the unit circle to the right is [tex]\cos(x)>\sqrt{3}/2[/tex] and this can be determined by using the trigonometric properties.

Given :

The unit circle is given.

The following steps can be used in order to determine the inequality that would result in the shaded solution on the unit circle to the right:

Step 1 - First determine the value of cosine function when the angle is [tex]5\pi/6[/tex]

[tex]\cos\dfrac{5\pi}{6} = -\cos \dfrac{\pi}{6}[/tex]

[tex]\cos\dfrac{5\pi}{6} = -\dfrac{\sqrt{3} }{2}[/tex]

Step 2 - Now, determine the value of the cosine function when the angle is [tex]\pi/6[/tex].

[tex]\cos\dfrac{\pi}{6} = \dfrac{\sqrt{3} }{2}[/tex]

Step 3 - Now, when the value of 'x' increases then the value of the cosine function also increases.

From the above steps, it can be concluded that the cosine function should be greater then [tex]\sqrt{3} /2[/tex]. Therefore, the correct option is A).

For more information, refer to the link given below:

https://brainly.com/question/19491153

Answer:

B. 0 <= sin(x) < 1/2

Step-by-step explanation:

EDG

during his vacation, dalyn rents a small boat from a rental service that charges a flat fee of $40 plus $10 per hour (including taxes). The total charge comes to $100. Which equation can be used to calculate the number of hours, x, that Dalyn rents the boat?

Answers

Answer:

(100 - 40) ÷ 10 = amount of hours

= 6 Hours

Step-by-step explanation:

HOPE THIS HELPS

PLZ MARK BRAINLIEST

NEED HELP ASAP, VIEW THE PHOTO FOR THE QUESTION PLZ I NEED HELP

Answers

Answer:

x=0 is the solution

Step-by-step explanation:

Notice that the graph is that of a parabola with vertex at the point (0, 0).

When we solve for x in the equation:

- x^2 = 0

then we divide by -1 both sides an get: x^2 = 0/(-1) = 0

and finally use the square root property to find the answer and we get:

[tex]x=+/- \sqrt{0} = +/- 0 = 0[/tex]

Since +0 = - 0 (this is the null value), there is only one solution: x = 0.

Please help answer this I will make you brainlst

Answers

Answer:

Read the comments that is where i put the answer at + my work.

What are the values for a and b?

Answers

Answer:

a= 10 b= 6

Step-by-step explanation:

When multiplying exponents they should be added together and when dividing they should be subtracted from each other.

2+8=10 & 10-4= 6

Ddghhhdww a12:-689fggggfa ehh

1) Given h(x)=x-5
a) Determine h^2
b)determine h^3

Answers

Answer:

A) x^2-10x+25 B)X^3-15x^2+75x-125

Step-by-step explanation:

H^2=(x-5)(x-5)=x^2-10x+25

H^3=(x-5)(x-5)(x-5)=X^3-15x^2+75x-125

Since there are no exponents in this problem, the next step is
✔ (- 2)2.2
.
Simplify the previous step and you get
.
The final answer is

Answers

If the check mark is a square root the next step is -2 x 2.2

Anwers:

22    is the answer

Why is 2(7^0)=2 correct?

Answers

Anything to the power of 0 is = 1, and 2x1=2

what is 2 5/8 equvilant to

Answers

Answer:

2.623

Step-by-step explanat

I will give brainliest :)

1. Here is a hanger

a Wrire an equation to represent the hanger.

5. Solve the equation by reasoning about the
equation or the hanger.

Explain your reasoning.

Answers

2.2 x 5 = 11. Hope this helps!!

Answer:

2.2 x 5 = 11

Step-by-step explanation:

Convert 2 days into months. Round your answer to the nearest hundredth.

Answers

Answer:

0.0657534

Step-by-step explanation:

divide 2 by 30.417

You have a gift card for your favorite clothing store for the amount of $60. You have found a shirt you want to buy that costs $15. If you don't want to spend more than the amount of the gift card, which of the following inequalities could be used to determine the amount you have left to spend?
A. x + 15 ≥ 60
B. x – 15 ≥ 60
C. x – 15 ≤ 60
D. x + 15 ≤ 60

Answers

Answer:

D is the correct answere

uhh so ders dis man and he fell one day on his butt, uhh so den he fell,,uhh another day....on his butt, how many times did he fall on his but?

Answers

Answer:

2 times

Step-by-step explanation:

Answer:

he did it 2 times

Step-by-step explanation:

because first, he fell on his but once the first day, and second the 2nd day.

Each big square below represents one whole.
What percent is represented by the shaded area?
Stuck? Watch a video or use a hint
7 of 7

Answers

Answer:

119% i think

Step-by-step explanation:

there are two squares

one is completely filled so its 100% shaded

the other has 19 mini squares filled so it's 19%

add those and you get 119%

Which unit rate corresponded to the proportional relationship shown in the graph?​

Answers

Answer: the speed of worm graph is bigger which gives you more space to figure out the way of the speed

Step-by-step explanation:

the graph is a picture designed to express words, particularly the connection between two or more quantities. You can see the graph . A simple graph usually shows the relationship between two numbers or measurements in the form of a grid.

PLS HELP ME !! ILL MARK BRAINLIST

Answers

Its C there are five times as many cows as goats
It’s c there are five times as many cow as goats

Help please zearn is so hardddd

Answers

Answer:

1000-20

Step-by-step explanation:

You are buying a new bicycle. The table shows the prices of bicycles at a store. You are willing to pay the mean price with an absolute deviation
of at most $60.

Select which inequalities represent the prices you are willing to pay.

Bicycle prices:
$350 $450 $180 $200
$290 $325 $240 $445



x-60 S 310
| x + 60 < 310
1 x + 310 < 60
x < 250 or x > 370
X - 310 < 60
250 < x < 370


Answers

Answer:

250 < x < 370

Step-by-step explanation:

From the given bicycle prices, we first calculate the mean.

Mean = ⅛($350 + $450 + $180 + $200 + $290 + $325 + $240 + $445)

Mean = ⅛(2480)

Mean = $310

Next, is to determine the amount willing to pay using.

Amount = Mean ± Absolute Deviation

Amount = $310 ± $60

This can split as follows

Amount = $310 + $60 or Amount = $310 - $60

Amount = $370 or $250

Represent as an inequality, we have:

250 < x < 370

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