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EastWind [94]
2 years ago
10

Volume & surface! May I please have help

Mathematics
1 answer:
Ludmilka [50]2 years ago
3 0

Answer:

D

Step-by-step explanation:

surface area of cylinder

=(area of base)×2 + (area of curved surface)

=(\frac{20}{2} )^{2} \pi× 2 + 20\pi × 25

=2 × \pi × 10^{2} + 2 × \pi × 10 × 25

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andre [41]

Answer:

Option B. f(g(x)) = (1-5x ^ 2) ^ 3  all real numbers

Step-by-step explanation:

We have

f(x) = x ^ 3 and g(x) = 1-5x ^ 2

They ask us to find

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To solve this problem we must introduce the function g(x) within the function f(x)

That is, we must do f(g(x)).

So, we have:

f(x) = x ^ 3

g(x) = 1-5x ^ 2

Then:

f(g(x)) = (1-5x ^ 2) ^ 3

The domain of the function f(g(x)) is the range of the function g(x) = 1-5x ^ 2.

Since the domain and range of g(x) are all real numbers then the domain of f(g(x)) are all real numbers

Therefore the correct answer is the option b: f(g(x)) = (1-5x ^ 2) ^ 3

And his domain is all real.

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Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answer:

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