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OpenStudy (anonymous):
Evaluate 9x^2y^-2 for x=-3 and y=2 A. 324 B. 20^1/4 C. 9(-6)^0 D. 1/144
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hartnn (hartnn):
just substitute x=-3 and y =2 like this \[9(-3)^2 2^{-2}\] would u try to solve further?
OpenStudy (anonymous):
i just got the answer thanks anyways
hartnn (hartnn):
welcome :) what did u get it as?
OpenStudy (anonymous):
20 1/4
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