CPM Homework Help : CCA Problem 4-107

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4-107.

Simplify each expression. In parts (c) and (d) write your answers using scientific notation.

$2^3\cdot5^{-2}$

Answer (a):
$\frac{8}{25}$

$( x y ^ { 2 } ) ^ { 3 } \cdot ( x ^ { - 2 } )$

$3 \times 10 ^ { 3 } \cdot 4 \times 10 ^ { 5 }$

Hint (c):
Remember to write your answer in scientific notation.

$\frac { 4 \times 10 ^ { 2 } } { 5 \times 10 ^ { - 2 } }$
Answer (d):
$8000$

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