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anonymous

  • one year ago

4x + 1 over 3y2 What is the value of the expression above when x = 2 and y = 3? You must show all work and calculations to receive full credit.

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  1. Michele_Laino
    • one year ago
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    substituting your numerical data into your expression, we get: \[4x + \frac{1}{3}{y^2} = 4 \cdot 2 + \frac{1}{3} \cdot {3^2} = ...\]

  2. Michele_Laino
    • one year ago
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    here, we have to compute the power, first

  3. anonymous
    • one year ago
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    can u sum it down a little im smart just not that smart

  4. Michele_Laino
    • one year ago
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    ok! next step is: \[4x + \frac{1}{3}{y^2} = 4 \cdot 2 + \frac{1}{3} \cdot {3^2} = \left( {4 \cdot 2} \right) + \left( {\frac{1}{3} \cdot 9} \right) = ...?\]

  5. anonymous
    • one year ago
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    um what do i have to do

  6. Michele_Laino
    • one year ago
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    you have to do multiplications first

  7. anonymous
    • one year ago
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    ok wht is the factors i use to multiply

  8. Michele_Laino
    • one year ago
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    first step: \(4 \cdot 2=...\)

  9. anonymous
    • one year ago
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    8

  10. Michele_Laino
    • one year ago
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    ok! then: \[{\frac{1}{3} \cdot 9}=...?\]

  11. anonymous
    • one year ago
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    um 1 x 9 is 9 3 x 9 is 27

  12. Michele_Laino
    • one year ago
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    |dw:1444233369417:dw|

  13. anonymous
    • one year ago
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    so 3 x 1

  14. Michele_Laino
    • one year ago
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    yes!

  15. Michele_Laino
    • one year ago
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    what is \(3 \cdot 1=...?\)

  16. anonymous
    • one year ago
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    3

  17. Michele_Laino
    • one year ago
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    finally, what is: \(8 + 3=...?\)

  18. anonymous
    • one year ago
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    11

  19. Michele_Laino
    • one year ago
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    correct! That is your answer!

  20. anonymous
    • one year ago
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    11

  21. Michele_Laino
    • one year ago
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    yes!

  22. anonymous
    • one year ago
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    thx ur awesome

  23. anonymous
    • one year ago
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    thx ur awesome

  24. Michele_Laino
    • one year ago
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    thanks! :)

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