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Homework Help: Algebra-please check

Posted by Joseph on Friday, January 7, 2011 at 4:04pm.

Could someone please check my solution-Thank you-DRWLS helped me set it up and I solved it, I think


From the top of a mountain 150 feet high, Jessie stands at the safety rail on the edge and looks below. The angle of elevation from his bike on the ground to Jessie is 38 degrees, how far is Jessie from his bike.Please help me to set this up
Thank you
sin 38 = .6157
.6157 = 150/x
150/.6157 = 243.6

I set this up from the info below that drwls provided




Algebra II - drwls, Friday, January 7, 2011 at 2:25pm
Draw a figure with a right angle triangle connecting Jessie, his bike and the base of the cliff.
38 degrees = arcsin 150/X,
where X is the distance you seek. (It is the hypotenuse of that triangle).

Solve that equation for X

sin38 = 150/X is one way to do it.



Algebra II-please check - Joseph, Friday, January 7, 2011 at 2:32pm

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