When a function is compose by its inverse, the result is its original input. Therefore,
Answer:
it is 45 because a triangle with tow sides are same

First, take about the

and


You can cancel out the two 3's on the bottom using two of the threes from the numerator

Simplify the fraction
3 x 3 Multiply
9
Answer:
5
Step-by-step explanation:
-5 + 5 = 0
Sum of 2 angles = 80°
Difference = 20°
If we take away 20° from the sum, both angles are equal
⇒80 - 20 = 60°
Divide by 2 to find the smaller angle:
60 ÷ 2 = 30
Add 20° to find the bigger angle:
20 + 30 = 50°
<u>One of the angle is 30° and the other angle is 50°</u>
Given that the sum of the two angles is 80°
⇒ Third angle = 180 - 80 = 100°
Answer: The 3 angles are 30° , 50° and 100°