geometry

Find the volume in terms of pi of a sphere with a surface area of 9 pi sq ft

  1. 👍 0
  2. 👎 0
  3. 👁 518
asked by Steve
  1. volume=4/3* PI r^3

    but area=4PIr^2 so r^2=9PI/4Pi=9/4
    or r= 3/2

    volume=4/3 * PI* (3/2)^3

  2. 9/2 pi ft. cubed

    1. 👍 1
    2. 👎 0
    posted by kfw
  3. Thank you i was stuck on this problem for a long time wonder how to approach it but all along it was simple. Thanks Again

  4. the answer to this is:
    1)A 2)A 3)B 4)B5)C 6)B 7)B 8)B 9)A 10)D

    1. 👍 4
    2. 👎 1
    posted by kakashi
  5. Thank you

    1. 👍 0
    2. 👎 0
    posted by Lex

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    The volume enclosed by a sphere of radius r is (4/3)πr^3. The surface area of the same sphere is 4πr^2. You may already have noticed that the volume is exactly (1/3)r times the surface area. Explain why this relationship should

    asked by maath on July 24, 2018
  2. Calculus (Parts A and B done, just help with C)

    The radius, r, of a sphere is increasing at a constant rate of 0.05 meters per second. A. At the time when the radius of the sphere is 12 meters, what is the rate of increase in its volume? B. At the time when the volume of the

    asked by Mishaka on January 17, 2012
  3. math

    3.A rectangular prism has a width of 92ft and a volume of 240ft.Find the volume of a similar prism with a width of 23ft.Round to the nearest tenth, if necessary. 4.A pyramid a height of 5in. and a surface area of 90in^2.Find the

    asked by anndreana on February 22, 2017
  4. Math

    I am doing a project, are my answers correct? 1. Find and simplify the volume-to-surface-area ratio for each of the three possible ice cube shapes. You can use this chart. |Shape| S/A Formula|Volume Formula Cube | S.A=6s^2 | V=s^3

    asked by Alexia Smith on March 4, 2016
  5. math 7 grd

    you have to design a space station (model) that has a 120 cm3 volume, and it has to have the possible smallest surface area. it must contain 3 different shapes. (cone and sphere surface are was not covered, only their volume, so

    asked by ed on April 19, 2018
  6. Math

    1) Find the surface area of a sphere with a radius of 8 cm. A 267.9 cm B 803.8 cm C 2143.6 cm D 2010. cm 2) Find the surface area of a sphere with a radius of 4 ft. A 452.2 m B 150.7 m C 113.0 m D 904.3 m 3) Find the volume of a

    asked by Jim on January 24, 2019
  7. MAth

    A sphere has a surface area of 28.26 in2. Find the diameter in inches, of the sphere. Use PI Question 2 What is the surface area, in square inches, of a sphere with radius 3.5 in.? Use Pi and round your answer to the nearest

    asked by Jessica on July 8, 2012
  8. physics

    Sphere 1 has surface area A1 and volume V1 and sphere 2 has surface area A2 and volume V2. If the radius of sphere 2 is 3.53 times the radius of sphere 1, what is the ratio of the areas A2/A1 ? 1.25×101 & 4.40×101 are correct

    asked by bill on December 5, 2017
  9. Some algebra please help me!

    1) Find the surface area of a sphere with a radius of 8 cm. A 267.9 cm B 803.8 cm *** C 2143.6 cm D 2010. cm 2) Find the surface area of a sphere with a radius of 4 ft. A 452.2 m B 150.7 m C 113.0 m D 904.3 m *** 3) Find the

    asked by Edward Elric on March 5, 2018
  10. maths

    K, Q1.A sphere of radius 5cm is lowered into a rectangular tank 50cm long and 20cm wide containing water to a depth of 10cm.The sphere floats with half of its surface above the level of the surface of the water Calculate (a)the

    asked by Christopher on January 29, 2016

More Similar Questions