Solve for a_s
a_{s}=\frac{9}{512}=0.017578125
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a_{s}=\frac{9}{16}\times \frac{1}{32}
Multiply both sides by \frac{1}{32}.
a_{s}=\frac{9\times 1}{16\times 32}
Multiply \frac{9}{16} times \frac{1}{32} by multiplying numerator times numerator and denominator times denominator.
a_{s}=\frac{9}{512}
Do the multiplications in the fraction \frac{9\times 1}{16\times 32}.
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