SOLUTION: The average weight W ( in ounces ) of a fish caught in a certain lake is given by W = 0.001x^3+0.03x^2+1.2, where x is the length in inches. Estimate the weight of a fish from the

Algebra ->  Test  -> Lessons -> SOLUTION: The average weight W ( in ounces ) of a fish caught in a certain lake is given by W = 0.001x^3+0.03x^2+1.2, where x is the length in inches. Estimate the weight of a fish from the      Log On


   

Question 770166: The average weight W ( in ounces ) of a fish caught in a certain lake is given by W = 0.001x^3+0.03x^2+1.2, where x is the length in inches. Estimate the weight of a fish from the lake that is 14 inches long.
Found 2 solutions by jim_thompson5910, Tatiana_Stebko:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
W = 0.001x^3+0.03x^2+1.2

W = 0.001(14)^3+0.03(14)^2+1.2 ... plug in x = 14

W = 0.001(2744)+0.03(196)+1.2

W = 2.744+5.88+1.2

W = 9.824

The estimated weight is 9.824 ounces

Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
Substitute x=14 into W+=+0.001x%5E3%2B0.03x%5E2%2B1.2
W+=+0.001%2A14%5E3%2B0.03%2A14%5E2%2B1.2=9.824ounces