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Vladimir79 [104]
3 years ago
8

Please Help! image below

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
6 0

Answer:

A = 81π cm²

Step-by-step explanation:

The area (A) of the cross section is calculated as

A = πr² ( r is the radius )

Find r by using the given circumference.

Given the circumference is 18π and circumference (C) is

C = 2πr = 18π ( divide both sides by 2π )

r = 9, thus

A = π × 9² = 81π cm²

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3 years ago
A plane descends 1000 ft while flying<br> 2.7 mi. What is the angle of descent?
Murrr4er [49]

Answer:

4.02°

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3 years ago
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Read 2 more answers
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morpeh [17]

Answer:

see the explanation

Step-by-step explanation:

we know that

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f(x)=-3x

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Part 2) we have

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6 0
3 years ago
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Anastasy [175]

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8 0
3 years ago
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