Which inequality represents all values of x for which the product below is defined? √5x ·√x+4 a.x>0 b.x≥0 c.x≤-4 d.x≥-4

asked Dec 16, 2015 207k views

4 votes

Which inequality represents all values of x for which the product below is defined?

√5x ·√x+4
a.x>0
b.x≥0
c.x≤-4
d.x≥-4

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4 votes

Answer:

Answer is B for Apex!

Explanation:

Pixic answered Dec 17, 2015

by Pixic

6.4k points

0 votes

$√(5x)\cdot√(x+4)\\\\5x\geq0\ \wedge\ x+4\geq0\\x\geq0\ \wedge\ x\geq-4\Righarrow x\geq0\\\\Answer:B.$

Kristof Pal answered Dec 20, 2015

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