Answer:
1)
Step-by-step explanation:
First you need to do your equation to..... =0 first
So you just minus 13 from 22 and get 9
Then you just do your completing the square
U is 10. If you subtract 11 first to get the variable and it's coefficient on its own, you see that 3u=30. To get the u on its own, you divide both sides by three. This gives you u=10
First angle = x
Second angle = x - 42
Sum both complementary angles = 90
x+x-42=90
2x=132
x=66⁰ - First angle
x-42=66-42=24
24⁰ - Second angle
X=7
100-30=70
70/10
x=7
hope this helps