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anonymous
 4 years ago
7. Evaluate 1/2a^–4b^2 for a = –2 and b = 4.
A. 2
B. 1/2
C. 3
D. 4
anonymous
 4 years ago
7. Evaluate 1/2a^–4b^2 for a = –2 and b = 4. A. 2 B. 1/2 C. 3 D. 4

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Is it \( \huge \frac 12a^{–4}b^2 \)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Then the answer is B. 1/2.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Convert everything to power of \( 2 \) and then use laws of indices.

ash2326
 4 years ago
Best ResponseYou've already chosen the best response.1we have \[1/2 a^{4} b^2\] substitute a=2 and b=4 we get \[1/2 (2)^{4} (4)^2\] or \[\frac{16}{2*16}\] cancelling the 16 from numerator and denominator \[\frac{1}{2}\]
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