Petra is given the equation (x + 15 )^2 + ( y+4 )^2 = 100 and identifies it's graph as a circle whose center is (-15,4) and radius is 10. has petra made a mistake ? explain.

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.

what are you doing do you need examples of variable questions?

step-by-step explanation:

5a-1=9               bring the one over the =

5a=10                     divide by your variable

a=2

brainliest? ?

here try this one

3a-24=0

add -60 to 120 which will result in : 2x+3y=180

then subtract 2x: 3y=-2x+180

lastly, divide by 2: y= -2/3x+60

hope this is the answer you're looking for: )