A cylindrical shaped swimming pool has a diameter of 30 feet and a water height of 4.5 feet. How many cubic feet of water is contained in the pool? Use 3.14 for pi. Round your answer to the nearest cubic foot.

3,179.25

Step-by-step explanation:

First you have to find the area of the circle at the top of the pool (A = r²π):

A = 15²π

Simplify:

A = 706.5

Then multiple the area of the circle by the height:

706.5*4.5 = 3,179.25

Round to the nearest cubic foot:

3,179ft

  about 5.6 days

step-by-step explanation:

we can fill the given information into the decay equation and solve for the value of t at which half the sample remains.

the half-life is about 5.6 days.

5+2x=a

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