Answer:
A = 21
Step-by-step explanation:
Complementary angles add to 90
x-21 + 2x-15 = 90
Combine like terms
3x -36 = 90
3x-36+36 = 90+36
3x = 126
Divide by 3
3x/3 =126/3
x = 42
We want to find ZA = x-21
A = 42-21
A = 21
Please provide a larger picture
Answer:
angle 6 is 135 degrees
Step-by-step explanation:
6 and 7 are supplementary angles meaning that together they equal 180.
180-65=135
When a polynomial has four or more terms, the easiest way to factor it is to use <span>grouping</span>