mathematics

posted by .

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)(20)2
3) (3.14)(18)(20)
4) (3.14)(18)2(20)
5) (3.14)(36)2(20)

  • mathematics -

    V = pi * r^2 * h

    Which of your answers expresses that formula?

  • mathematics -

    number 4

  • mathematics -

    No. The radius is not 18.

  • mathematics -

    the answer is
    5

  • mathematics -

    Nope. The radius is half the diameter.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Geometry

    A science lab needs a right circular cylindrical container that holds 15 gallons of liquid & is 24in tall. A reference manual states that 231 cubic inches is equivalent to one gallon. What is the approximate radius, in inches, or the …
  2. Math

    The surface area of a cube is 384 square inches. What is the volume of the cube?
  3. math

    5 inches by 7 inches, and the box must be at least 4 inches tall. What is the least possible volume of a box, in cubic inches, that meets these requirements?
  4. Math

    If Sally places a rocket that is 3 feet 6 inches tall atop a launch pad that is 1 foot 8 inches tall, how tall will the entire unit, rocket and launch pad, be when she is done?
  5. math

    A cylindrical gasoline can is 18 inches across and 20 inches tall.which expression represents the approximate volume in cubic inches?
  6. math 2

    max packs cereal boxes into a larger box the volume of each cereal box is 175 cubic inches. which is the best estimate for the volume of the large box?
  7. DIAMETER

    What is the approximate volume of this sphere, which has a diameter of 18 inches?
  8. ALGEBRA

    bean plants grow rapidly. a bean plant is 16 inches tall. Tomorrow it will be 24 inches tall, the next day it will be 32 inches tall and on the next day it will be 40 inches tall. Write a rule to represent the heights of the bean plant …
  9. ALGEBRA

    bean plants grow rapidly. a bean plant is 16 inches tall. Tomorrow it will be 24 inches tall, the next day it will be 32 inches tall and on the next day it will be 40 inches tall. Write a rule to represent the heights of the bean plant …
  10. Algebra 1 check answers

    A box has dimensions of 17 inches long, 1.3 feet wide, and 8 inches high. What is the volume of the box?

More Similar Questions