Question

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

Answer 1

Answer is B for Apex!

Explanation:

Answer 2

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