Answer:
sorry dont know
Step-by-step explanation:
Answer:
r=-11
Step-by-step explanation:
7r+2=5(r-4)
7r+2=5r-20
2r=-22
r=-11
Answer:
I think a number sorry trying to get points for some reason I am out.
Step-by-step explanation:
Correct because 1 and angle 2 are vertical angles then angle 1 and angle 2 are congruent
Answer:
a) Circle 1: 3.14275
Circle 2: 3.1425
Circle 3: 3.143
b) 
c) C= d • 
Step-by-step explanation:
a) you just divide the circumference over the diameter
Hope this helps!