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)

Question

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)

Steve · Accepted Answer

v = pi r^2 h, so v = 3.14(9^2)(20) Looks like (1) online "^" is customarily used for exponents

Anonymous · Answer

thanks