CPM Homework Help : CC3 Problem 3-95

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3-95.

Evaluate the expressions below for the given values.

$30-2x$ for $x=-6$
Hint (a):
Substitute in $-6$ for $x$ .
$30-2(-6)$
Evaluate
Answer (a):
$42$

$x^2+2x$ for $x=-3$
Hint (b):
Follow the steps in part (a).

$-\frac{1}{2}x+9$ for $x=-6$
Hint (c):
Follow the steps in part (a).
Answer (c):
$12$

$\sqrt { k }$ for $k=9$
Hint (d):
Follow the steps in part (a).
Answer (d):
$3$

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