CPM Homework Help : INT3 Problem 4-47

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4-47.

Simplify each expression without using a calculator.

$25^{-1/2}$
Step (a):
$\frac{1 }{ \sqrt{ 25 } }$
Answer (a):
$\frac{ 1 }{ 5}$

$\left(\frac{1}{27}\right)^{-1/3}$
Steps (b):
$\left(\frac{1}{27}\right)^{-1/3}=27^{1/3}$
$=\sqrt[3]{27}$
Answer (b):
$3$

$9^{3/2}$
Step (c):
$\left(9^{1/2}\right)^{3}=?$

$16^{-3/4}$
Step (d):
$\left(16^{1/4}\right)^{-3}=?$

Compute without a calculator

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