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OpenStudy (anonymous):
Please help
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OpenStudy (mathstudent55):
Where is the expression that needs to be evaluated?
OpenStudy (anonymous):
i got 786
OpenStudy (anonymous):
parentheses come before exponents. multiply 7 and 4 before squaring.
OpenStudy (mathstudent55):
\(\dfrac{u}{z} + xy^2 \) \(=\dfrac{20}{10} + 4(7^2) \) \(=2 + 4(49) \) \(=2 + 196\) \(= 198\)
OpenStudy (anonymous):
ahh i see i thought it was (xy)^2 yup 198
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OpenStudy (mathstudent55):
Correct. 198 is the answer.
OpenStudy (anonymous):
sorry for the confusion!
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