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anonymous

  • one year ago

PLEASE HELP ME!! The volume for a rectangular prism is given by the formula V = l · w · h, where l is the length of the prism, w is the width of the prism, and h is the height of the prism.If the volume of a rectangular prism with a height of 9 inches is 144 cubic inches and the base of the prism is a square, then what is the width of the rectangular prism?

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  1. anonymous
    • one year ago
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    A.4 inches B.36 inches C.16 inches D.8 inches

  2. anonymous
    • one year ago
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    can we go through this fast because its really getting late and i have school tomorrow sorry im not trying to be rude or just get answers from you :)

  3. Rushwr
    • one year ago
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    |dw:1443165182083:dw|

  4. Rushwr
    • one year ago
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    if V =l*w*h then so since they have said that base of the prism is a square that means all the sides if the base are equal . So length = width !! since l = w We can write the equation as V =2wh right> Cuze l=w so lw=2w=2l \[w = \frac{ v }{ 2h }\]

  5. Rushwr
    • one year ago
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    \[w = \frac{ 144 }{ 9 *2 } = \frac{ 144 }{ 18} = 8inches\]

  6. anonymous
    • one year ago
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    is the answer going to be 16 inches

  7. anonymous
    • one year ago
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    oh wait the answer its 8 inches?

  8. Rushwr
    • one year ago
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    yep U have o divide the volume by 2h!!!!! not just h .

  9. Rushwr
    • one year ago
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    Got it ?

  10. anonymous
    • one year ago
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    thats the wrong answer

  11. Rushwr
    • one year ago
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    huh?

  12. anonymous
    • one year ago
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    the answer was 4 inches

  13. Rushwr
    • one year ago
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    oopz did a very careless mistake l*w = l^2 not 2l

  14. Rushwr
    • one year ago
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    that where i went wrong soo square root of 16 is 4

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