Pre-Algebra

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1) Find the surface area for a sphere with a radius of 10 feet. Round to the nearest whole number.

a. 1,256 ft2
b. 4,189 ft2
c. 1,089 ft2
d. 1,568 ft2

2) Find the volume of a sphere with a radius of 10 feet. Round to the nearest whole number.

a. 1,257 ft3
b. 4,187 ft3
c. 1,089 ft3
d. 1,568 ft3

3) Find the surface area for a sphere with a radius of 7 cm. Round to the nearest whole number.

a. 307 cm2
b. 1,436 cm2
c. 1,020 cm2
d. 615 cm2

4) Find the volume for a sphere with a radius of 7 cm. Round to the nearest whole number.

a. 307 cm2
b. 1,436 cm2
c. 1,020 cm2
d. 615 cm2

5) Find the radius of a sphere with a surface area of 804 cm2.

a. 9 cm
b. 8 cm
c. 64 cm
d. 204 cm

My Answer: Please Be Honest ....... !!!!!!!
:(

1) b
2) c
3) a
4) d
5) d

  • Pre-Algebra -

    I'm not guessing YOU KNOW .!

  • Pre-Algebra -

    PLEASE HELP


    *I'M SORRY*

  • Pre-Algebra -

    :( :( :( :( :( :(

  • Pre-Algebra -

    I checked 1, 3, and 5 and they are all three wrong.

  • Pre-Algebra -

    I checked the other two and they are also wrong.

    You must be using the wrong formula.

    http://math.about.com/od/formulas/ss/surfaceareavol.htm

  • Pre-Algebra -

    Well, Can u give me the answer please it because i'm in a rush..... please and later i tell u the rest please please :( :( :( :( ??????? please please

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