Answer:

Step-by-step explanation:
<u><em>Using Pythagorean Theorem:</em></u>
=> 
Where c is hypotenuse, a is base and b is perpendicular and ( a, b = 4)
=> 
=> 
=> 
Taking sqrt on both sides
=> c = 5.7 units
Set each set of parentheses to 0 and solve for x.
X—6 = 0
X = 6
X + 5 = 0
X = -5
X-9 = 0
X = 9
The zeros are 6, -5, 9
Answer:
x<−8 or x>−4
Step-by-step explanation:
−x>8 or −x<4
We know either −x>8 or −x<4
−x>8(Possibility 1)
−x
−1
>
8
−1
(Divide both sides by -1)
x<−8
−x<4(Possibility 2)
−x
−1
<
4
−1
(Divide both sides by -1)
x>−4