Algebra Word Problem

Algebra
Tutor: None Selected Time limit: 1 Day

The height h in feet of water in a cylindrical storage container which has sprung a small leak is modeled by the formula h=0.0005t^2-0.14t+8 where t is the elasped time in seconds. Estimate to the nearest second the time it takes for the container to empty. 

May 14th, 2015

By factorization method t isx%5B12%5D+=+%28b%2B-sqrt%28+b%5E2-4ac+%29%29%2F2%5Ca where  a = 0.0005 and b = -0.14 and c = 8

Two real solutions exist

t1 = 79.99 = 80 seconds

t2 = 200 seconds

May 14th, 2015

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