February 26, 2017

Homework Help: Algebra

Posted by Jack on Wednesday, January 5, 2011 at 3:42pm.

Two questions?

Build a patio-hypotenuese is 50 feet long
the two sides of patio are same. What is the length of one side of the patio

I think I set it up a^2 + b^2 = c^2
a^2 + b^2 = 50^2
a^2+ b^2 = 2500
then I just could say 2a^2 = 2500
a^2 = 2500/2
a^2 = 1250
sqrt of 1250 = 35.36 correct?

2nd question? Boat across a river with the current moving you downstream so the boat goes at a 30 degree angle. If the river is 400 feet across, how far downstream do you end up-this one I'm totally confused on

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