SOLUTION: In solving for a, using a^2+b^2=c^2, where b=7 and c=9, I can't seem to get my answer to work, can someone help me?

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Question 43992: In solving for a, using a^2+b^2=c^2, where b=7 and c=9, I can't seem to get my answer to work, can someone help me?
Found 2 solutions by adamchapman, checkley71:
Answer by adamchapman(301) About Me  (Show Source):
You can put this solution on YOUR website!
a%5E2%2Bb%5E2=c%5E2
a%5E2=c%5E2-b%5E2
a%5E2=9%5E2-7%5E2
a%5E2=81-49
a%5E2=32
a=sqrt%2832%29=5.657
I hope this helps.
P.S. I am trying to start my own mathematics homework help website. I would be extremely grateful if you would send me your feedback on my help to adam.chapman@student.manchester.ac.uk.

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
A~2+7*7=9*9 or a~2=81-49 or a~2=32 or a=5.657