3 years ago

Please help quick please

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

3 0

Answer:

your answer is 8.40

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A cylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. What is the radius o

Maru [420]

Volume of the cylinder = πr²h = π(1)² (21) = 21π cm³

Volume of the cone = 1/3 π r² h

21π = 1/3 π (r)² (7)

r³ = 21π ÷ (7/3 π)

r² = 9

r = 3

Answer : Radius = 3

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3 years ago

Evaluate the function.<br> f(x) = 3x2 + 16<br> Find f(-1)

SIZIF [17.4K]

Answer:

$f(-1)=19$

Step-by-step explanation:

<u>Evaluating Functions</u>

Given a function y=f(x), evaluate the function for x=a means substituting the variable for the given value.

We have the function:

$f(x)=3x^2+16$

Find f(-1):

$f(-1)=3(-1)^2+16$

$f(-1)=3(1)+16$

$f(-1)=3+16$

$\boxed{f(-1)=19}$

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2 years ago

Five cubes are lined up to form a solid. The side lengths of the cubes are 1 ft, 2 ft, 3 ft, 4 ft, and 5 ft. What is the volume

sdas [7]

First, you find the volume of each individual cube, and then you add everything up.

1^3 +2^3+3^3+4^3 + 5^3 = 225

hope this helped :)

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3 years ago

Barry and Bernice have obtained a 30-year, fixed rate mortgage for $635,250 with a 7.35% interest rate. They purchased 2 points

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Answer: C

Explanation

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2 years ago

Hello, I need help with question ASAP please

Yuliya22 [10]

Do 180 and subtract 171 so 9

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3 years ago

Read 2 more answers