The correct answer is x= -1. Hope this helps!!
<span>It
has no perfect square factors, unless you count 1 = 1^2. That's sort
of a degenerate case we don't usually count, since every integer has
that factor. We would usually say that 1290 is a square-free integer. Hope this helps!!</span>
Answer:
1)$25.5
2)$15.3
3)$21.08
Step-by-step explanation:
Answer:
Common ratio r = 2
Step-by-step explanation:
the fith term of a G.P is 8 times the 2nd term.

Hence, common ratio is 2.
Assume the mattress have no width, only length.
By Pythagoras' Theorem, √(72^2 + 80^2) = 107.6 inches.