3 years ago

If c(x) = 4x - 2 and d(x) = x^2 + 5x, what is (c • d)(x)?

Mathematics

1 answer:

FromTheMoon [43]3 years ago

6 0

Answer:

4x²+20x-2

Step-by-step explanation:

c(d(x)) = 4[x²+5x] - 2

= 4x²+20x-2

* substitute x by x²+5x

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Alla [95]

Answer:

803.84 feet squared

Step-by-step explanation:

A=pi*r^2

16^2=256

256*pi=803.84

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2 years ago

Find the surface area of the cylinder if the radius is 3 and the height is 12.

agasfer [191]

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282.74

Step-by-step explanation:

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3 years ago

Student Debt – Vermont: The average student loan debt of a U.S. college student at the end of 4 years of college is estimated to

mezya [45]

Answer:

The confidence interval is (24116.3878,24883.6122).

Step-by-step explanation:

We are given the following information in the question:

Population mean, $\mu$ = $23,500

Sample mean, $\bar{x}$ = $24,500

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$\bar{x} \pm t_{critical}\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at}~\alpha_{0.05} = \pm 1.655436$

$24500 \pm 1.65543(\frac{2800}{\sqrt{146}} ) = 24500 \pm 383.6122 = (24116.3878,24883.6122)$

The confidence interval is (24116.3878,24883.6122).

5 0

2 years ago

Solve. 8 – 3x – x = 12 <br> x =?

poizon [28]

You have to isolate x. First you start off by adding the like terms which is -3x and -x. By adding them you get -4x.

8 - 4x = 12

Then you subtract 8 on both sides since it is positive to isolate x.
-4x = 4

Then you divide -4 by both sides and get x=4/-4

4/-4 is simplified to -1 so the answer is x= -1

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3 years ago

Perform the Indicated Operation. (-18)-(4)

Tems11 [23]

-22 is your answer because all you have to do is take 4 away from -18 and you get -22

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3 years ago

Read 2 more answers