# math

A cylindrical gasoline can is 18 inches across and 20 inches tall.which expression represents the approximate volume in cubic inches? (1)(3.14)(9)2(20) 2) (3.14)(9)(202)2 3) (3.14)(18)(20) 4) (3.14(18)2(20) 5) (3.14(36)2(20)

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1. v = pi r^2 h, so
v = 3.14(9^2)(20)
Looks like (1)

online "^" is customarily used for exponents

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2. thanks

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