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anonymous

  • one year ago

A rectangle has a length of 3/81 and a width of 3^2/3 inches. Find the area of the rectangle. A. 3^2/3 inches squared B. 3^8/3 inches squared C. 9 inches squared D. 9^2/3 inches squared

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  1. Jacob902
    • one year ago
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    exampleA rectangle has a length of the cube root of 81 inches and a width of 3 to the 2 over 3 power inches. Find the area of the rectangle

  2. Jacob902
    • one year ago
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    1. area of rectangle is the length l times the width w 2. length l is cube root of 81 and the 3 ^(2/3) and be simplified to cuberoot((3^2) which is cube root of 9. now they have the same power. 3. (81^(1/3))*(9^(1/3)) is (729^(1/3)) by the exponential law. 4. Using a calculator or your head you get that the cube root of 729 is simply 9.

  3. Jacob902
    • one year ago
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    3^(2/3) is the width

  4. anonymous
    • one year ago
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    so its A right?

  5. Jacob902
    • one year ago
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    think about it

  6. anonymous
    • one year ago
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    C?

  7. Jacob902
    • one year ago
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    you sure?

  8. anonymous
    • one year ago
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    yea? lol idk

  9. Jacob902
    • one year ago
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    its 3 3/6 its 3^2 and thats nine

  10. anonymous
    • one year ago
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    oh ok i was close thnx :)

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