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10 April, 13:49

Alex needs to buy compressed air to fill empty cylindrical tanks for his tire store. Each tank is 12 feet deep and has a radius of 6 feet. What is the volume of compressed air needed to fill 5 tanks? (Use 3.14 for π.)

A. 565.2 ft3

B. 1,356.5 ft3

C. 3,452.6 ft3

D. 6,782.4 ft3

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Answers (1)
  1. 10 April, 14:41
    0
    So

    volume=height times area of base

    base = circle so

    area of base=area of circle=pir^2

    volume=h (pi) r^2

    h=12

    r=6

    pi=3.14 aprox

    subsitute

    volume=12 (3.14) 6^2

    volume=12 (3.14) 36

    volume=1356.48

    that is vol of 1 tank

    1356.48 times 5=6782.4

    answer is 6782.4 ft^2 or D
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Home » Mathematics » Alex needs to buy compressed air to fill empty cylindrical tanks for his tire store. Each tank is 12 feet deep and has a radius of 6 feet. What is the volume of compressed air needed to fill 5 tanks? (Use 3.14 for π.) A. 565.2 ft3 B. 1,356.5 ft3 C.
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