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wintersuntime

  • one year ago

Can someone be nice enough to help me please on this question -> Evaluate each expression if r=-3, s=4 and t=7

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  1. wintersuntime
    • one year ago
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    A. r2+√s

  2. mathstudent55
    • one year ago
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    The first step is to replace the variables with their values. |dw:1439255162674:dw|

  3. mathstudent55
    • one year ago
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    Now do the arithmetic. (-3)^2 = (-3)(-3) = ? \(\sqrt 4 = ?\)

  4. wintersuntime
    • one year ago
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    2

  5. wintersuntime
    • one year ago
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    So total is -7

  6. wintersuntime
    • one year ago
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    @mathstudent55

  7. zzr0ck3r
    • one year ago
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    what is \((-3)^3=(-3)(-3)=?\)

  8. zzr0ck3r
    • one year ago
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    hint: two negatives multiplied together give a positive. What is \(\sqrt{4}\)? hint: it is 2. Add those numbers to get ? hint: it starts and ends with a \(1\), and there are only two digits.

  9. mathstudent55
    • one year ago
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    |dw:1439338970853:dw|

  10. wintersuntime
    • one year ago
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    Thanks

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