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2 years ago

The function f(r) gives the area of a circle with radius r.

Mathematics

1 answer:

Darina [25.2K]2 years ago

8 0

Answer:

A. 50.24

Step-by-step explanation:

Put the value where the variable is and do the arithmetic.

f(4) = 3.14(4²) = 3.14×16 = 50.24

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Help me plzzzzzzzzzzzzz

tensa zangetsu [6.8K]

Answer:

7/20. or .035 as a decimal

Step-by-step explanation:

the 2 subtractions would cancel out so it would be -1/4+3/5. then you would times both equations by the opposite bottom number which would turn into -5/20+12/20 which is just -5+12 all under 20 which then when you add -5 and 12 it would be 7. so its 7/20

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3 years ago

How did the mongols defeat 75,00 russians if they only has about 25,00 soldiers?

mart [117]

the answer i got was 50,000

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2 years ago

The cylinder and the sphere below have the same radius and the same volume. What is the height of the cylinder?

lyudmila [28]

Answer:

Height of cylinder (h) = (4/3)R

Step-by-step explanation:

Given:

Radius of cylinder (r1) = R

Height of cylinder (h) = H

Radius of sphere (r2) = R

Volume of cylinder = volume of sphere

Find:

Height of cylinder (h) = H = ?

Computation:

$Volume\ of\ cylinder = volume\ of\ sphere\\\\ \pi (r1)^2h =\frac{4}{3} \pi (r2)^3\\\\\pi (R)^2h =\frac{4}{3} \pi (R)^3\\\\ h=\frac{4}{3} (R)$

Height of cylinder (h) = (4/3)R

4 0

3 years ago

Round to the nearest tenth if neccessary<br> 69.904 divided by 34

Cloud [144]

Answer:

2.056

rounded to the nearest tenth: 2.1

Plz mark brainliest!! :DD

7 0

2 years ago

Read 2 more answers

Find the coordinates of the vertices of the figure after the given transformation. translation: (x, y)→(x - 4, y + 4) A) J'(1, 0

Colt1911 [192]

Answer:

Step-by-step explanation:

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2 years ago