Well since we can use a base of 1 we know that 1 - 45 is less than 4 but -1 + 45 is not, which follows the assumption that x>0, but now we need to know what x is less than to fit the inequality. If we use 5 as a trial we can see that 5 - 9 = -4 so 0<x<5 is your answer. Hope this helps I basically used trial and error. If you want to check try 3 or 4 for x and it will work but 6 will not.
Answer:
40 Percent
Step-by-step explanation:
I just used a calculator.
Hello!

In an isosceles trapezoid, both angles on each side of the base are congruent.
∠z ≅ 75°
∠y ≅ ∠x
Because of this, we can get the angle measure for z easily:
m∠z = 75°