SOLUTION: : Yield = 10 + 2.5*X -0.1*X2 where X is the amount of fertilizer in lbs per acre and yields are bu per acre. What is the yield if 8 lbs of fertilizer are applied? USE ONE DECIMAL P

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: : Yield = 10 + 2.5*X -0.1*X2 where X is the amount of fertilizer in lbs per acre and yields are bu per acre. What is the yield if 8 lbs of fertilizer are applied? USE ONE DECIMAL P      Log On


   



Question 944227: : Yield = 10 + 2.5*X -0.1*X2 where X is the amount of fertilizer in lbs per acre and yields are bu per acre. What is the yield if 8 lbs of fertilizer are applied? USE ONE DECIMAL PLACE.

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

if Yield+=+10+%2B+2.5x+-0.1x%5E2 where x is the amount of fertilizer in lbs per acre, and if x=8 lbs of fertilizer are applied, we will have:
Yield+=+10+%2B+2.5%2A8+-0.1%2A8%5E2
Yield+=+10+%2B+20+-0.1%2A64
Yield+=+30+-6.4
Yield+=+23.6