SOLUTION: Solve the formula for the indicated variable. Show ALL work! 1.) V=πr^2h solve for h 2.) A=1/2h(b1 + b2) solve for b1 PLEASE HELP I HAVE NO IDEA HOW TO DO T

Algebra ->  Equations -> SOLUTION: Solve the formula for the indicated variable. Show ALL work! 1.) V=πr^2h solve for h 2.) A=1/2h(b1 + b2) solve for b1 PLEASE HELP I HAVE NO IDEA HOW TO DO T      Log On


   

Question 780643: Solve the formula for the indicated variable. Show ALL work!
1.) V=πr^2h
solve for h
2.) A=1/2h(b1 + b2)
solve for b1

PLEASE HELP I HAVE NO IDEA HOW TO DO THIS !!!!
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
1)
+V+=+pi%2Ar%5E2+%2Ah+
You want to get +h+ alone on one side
Divide both sides by +pi%2Ar%5E2+
+V+%2F+%28+pi%2Ar%5E2+%29+=+h+
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2)
+A+=+%281%2F2%29%2Ah%2A%28+b%5B1%5D+%2B+b%5B2%5D+%29+
+A+=+%281%2F2%29%2Ah%2Ab%5B1%5D+%2B+%281%2F2%29%2Ah%2Ab%5B2%5D+
Try to get +b%5B1%5D+ alone on one side
Subtract +%281%2F2%29%2Ah%2Ab%5B2%5D+ from both sides
+A+-+%281%2F2%29%2Ah%2Ab%5B2%5D+=+%281%2F2%29%2Ah%2Ab%5B1%5D+
Multiply both sides by +2%2Fh+
+%282%2Fh%29%2A%28+A+-+%281%2F2%29%2Ah%2Ab%5B2%5D+%29+=+b%5B1%5D+
+%282A%29%2Fh+-+b%5B2%5D+=+b%5B1%5D+
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Hope this helps