I got 9.75 hope it's right
All of them have the same answer of -8 except the last one.
Expanded form:
9.0+0.80+0.05
Answer:
Step-by-step explanation:
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)