4 years ago

Find the surface area of the cylinder. Round your answer to the nearest tenth.

1 answer:

8 0

Answer:

Sorry, i can't help you with this question, because you never provide the picture of the cylinder, but here is the formula of the cylinder and the steps how to find it.

Step-by-step explanation:

Formula: A=2πrh+2πr2

Add the area of every end plus the surface of the side to find the surface of the cylinder. Each end is a circle so that each end's surface area is β*r2, where r is the end's radius. The total region is 2 ′ * r2. There are two sides.

Hope this helps.

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Assume that a varies directly as b. What is the constant of proportionality if a = 8 when b = 2?

Lena [83]

Answer:

k = 4

Step-by-step explanation:

Given that a varies directly as b then the equation relating them is

a = kb ← k is the constant of variation

To find k use the condition a = 8 when b = 2

k = $\frac{a}{b}$ = $\frac{8}{2}$ = 4