Question

13^2= square root or 177+b^2?????

Answer 1

okey dokey

Answer 2

169 = 177+b^2
subtract 177 from both sides to isolate b^2

Answer 3

oops, sorry. I read your post wrong

Answer 4

\[169 = \sqrt{177+b ^{2}}\]

Answer 5

square both sides to find
\[28561=177+b ^{2}\]

Answer 6

subtract 177 from both sides:
28394=b^2

Answer 7

take the square root of both sides to solve for b
\[\sqrt{28384} = b = 168.476\] (approximately)

Answer 8

oh so i don't square root the 177 til the end???

Answer 9

was the original problem
\[13^{2}=\sqrt{177+b ^{2}}\]?

Answer 10

yes

Answer 11

We never had to find the square root of 177 by itself

Answer 12

If you square a square root, the square root goes away. That's what I did to find
28561=177+b^2

Answer 13

from there I subtracted 177 from both sides to get the variable by itself

Answer 14

so then the equation becomes
\[28384 = b ^{2}\]

Answer 15

then to solve for b, i took the square root of both sides