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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:

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

  • Pre-Algebra -

    Please help Please help please help me with my homework !!!!!! :( :( :( :( *sad*

  • Pre-Algebra -

    3, 3, 5 are wrong.

  • Pre-Algebra -

    Correction: 2, 3, and 5 are wrong.

  • Pre-Algebra -

    5) b

    2) a

    3) d

  • Pre-Algebra -

    Ms. Sue ?

  • Pre-Algebra -

    Hello ???????????

  • Pre-Algebra -

    MS.SUE MS.SUE?????!!!!???!!

  • Pre-Algebra -

    *CRY* *CRY*

  • Pre-Algebra -

    NEVER MIND 0-0

  • Pre-Algebra -

    That's better. Now only 2 is still wrong.

  • Pre-Algebra -

    I had this test these answers are correct you'll get 100% hope it helps

    1).1,256ft2

    2).4,187ft3

    3).615cm2

    4).1,436cm2

    5).8

  • Pre-Algebra -

    Lydia is right I just got a 100% on my test to.

  • Pre-Algebra -

    Lydia is right thanks lydia

  • Pre-Algebra -

    Thanks lydia 100% :D

  • Pre-Algebra -

    I got a 100% using lydia's answer thank you so much. If you go to connections you will get a 100%

  • Pre-Algebra -

    1)A
    2)B
    3)D
    4)B
    5)B

    I just took this I got 100%

  • Pre-Algebra -

    Thanks Lydia! <3 100%

  • Pre-Algebra -

    thanks lydia!!!!

  • Pre-Algebra -

    also, thank you to zobo322!!!!

  • Pre-Algebra -

    Thank Lydia I got 100

  • Pre-Algebra -

    @ZOBO322 && @Lydia 100% thanks :D

  • Pre-Algebra -

    The answers are correct.

    1: A
    2: B
    3: D
    4: B
    5: B

  • Pre-Algebra -

    they are all right so here is one last row of answers yolo xD
    1:A
    2:B
    3:D
    4:B
    5:B

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