Supplementary angles add to be 180 degrees. If one angle is 20. The supplement angle is 160.
180 - 20 = 160
160 is your answer.
Answer: 
Step-by-step explanation:
Given
The dog has a 25 ft leash
Arc length is 74.3 ft
Arc length is given by

here, r=25 ft
l=74.3 ft
Put the values

The measure of the angle is 
Answer:
m = −3
Step-by-step explanation:
Use the slope formula to find the slope m
.
Answer: 36÷4=9
Step-by-step explanation:
Answer:
2nd one
Step-by-step explanation:
when it's a 45 45 and 90 triangle, it's 1, 1, sqrt 2, but now since the 1 is sqrt 2, v is sqrt 2, and u and sqrt 2 times sqrt 2, which is 2