Question

I need help answering this question

Answer 1

Answer:

see explanation

Step-by-step explanation:

A

The volume (V) of a cylinder is calculated using the formula

V = πr²h ( r is the radius of the base and h is the height )

here d = 3 ⇒ r = 1.5 and h = 8, thus

V = π × 1.5² × 8

  = π × 2.25 × 8 = 18π ft³

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B

We require to calculate the radius to obtain the diameter, hence

πr² × 2 = 18π ← volume of tank B = volume of tank A

2πr² = 18π ( divide both sides by 2π )

r² = 9 ( take the square root of both sides )

r = $\sqrt{9}$ = 3

Hence diameter = 2 × 3 = 6 ft