Question

Please Help..
c^2=10^2+6^2

Answer 1

\[\large c^2=10^2+6^2\]


\[\large c^2=100+36\]


\[\large c^2=136\]


\[\large c=??\]

Answer 2

What are the ?? marks stand for?

Answer 3

they are for you to fill in the blank

Answer 4

for instance, if we had 2x = 10 and I said x = ?? then you would fill in x = 5

Answer 5

so c=68?

Answer 6

c^2 = 136 doesn't mean 2 times c = 136

Answer 7

c^2 means c squared

Answer 8

so how do you undo the square to isolate c?

Answer 9

You divide?

Answer 10

no

Answer 11

thats if we had 2c = 136

Answer 12

to undo the square, we take the square root of both sides

Answer 13

So

\[\large c^2=136\]


\[\large c=\sqrt{136}\]


Now we simplify the root to get


\[\large c=\sqrt{4*34}\]


\[\large c=\sqrt{4}*\sqrt{34}\]


\[\large c=2\sqrt{34}\]

Answer 14

and thats it?

Answer 15

yep