3 years ago

What is the exact volume of a sphere that has a radius of 18 m?

Mathematics

1 answer:

krok68 [10]3 years ago

7 0

Answer:

Step-by-step explanation:

36 u think you need to multiply it by 2

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Five friends all brought some cakes with them when they met. Each of them gave a cake to each of the others. They then ate all t

Sergeeva-Olga [200]

Answer:

1/2 i hope i helped

Step-by-step explanation:

8 0

2 years ago

F (x) = x^2 + 2x - 5<br> g(x) = 2x + 4<br> What is (f• g)(x)?

Vilka [71]

Answer:

Step-by-step explanation:

This is a composite function, f(g(x)). This means, working from the inside function to the outside, we will take the function g and plug it in for x in the f function. g(x) = 2x + 4. We will plug that into f(x) and evaluate f(2x+4):

$f(g(x))=(2x+4)^2+2(2x+4)-5$ and I imagine your teacher has you simplify completely. We FOIL and distribute to get

$f(g(x))=4x^2+16x+16+4x+8-5$ which, by combining like terms, give us

$f(g(x))=4x^2+20x+19$

5 0

3 years ago

Need help with this problem.

tigry1 [53]

Answer:

C) $-\frac{47}{49}$

Step-by-step explanation:

By the cos double angle formula, we know $\cos(2\theta)=2\cos^2\theta-1.$ Substituting $\cos \theta$ into the formula, we get

$\cos(2\theta)=2(-\frac{1}{7})^2-1\\~~~~~~~~~~=\frac{2}{49}-1\\~~~~~~~~~~=\boxed{-\frac{47}{49}}$ .

The answer is C.

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2 years ago

How many triangles are in a square

jeka94

There are at least two

6 0

2 years ago

A camera manufacturer spends $2,000 each day for overhead expenses plus $9 per camera for labor and materials. The cameras sell

mylen [45]

They must sell 250 cameras
and 50 more cameras would be a $400 profit

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3 years ago

Read 2 more answers