Answer: 
Step-by-step explanation:
x^2+y^2=r^2 --> subtract x^2 to other side
y^2=r^2-x^2 --> square root both sides
y=sqrt(r^2-x^2)
Answer:
Just took the test :))
Step-by-step explanation:
Look at the image down below!! ヽ(o^▽^o)ノ
See attachment file below.
Hope it helped!!
18 minutes because 6*2 is 12 and 3*6 is 18. it will take 6 minutes to do 4 problems, 9 minutes to do 6 problems , 12 minutes to do 8 problems, 15 minutes to do 10 problems, and 18 minutes to do 12 problems
$412 i am pretty sure that is right if not i'm sorry but good luck :)