SOLUTION: Which of these is a quadratic expression and why? h=10t-4.9t^2 y=2square root x A=2pi r^2

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: Which of these is a quadratic expression and why? h=10t-4.9t^2 y=2square root x A=2pi r^2      Log On


   

Question 1144921: Which of these is a quadratic expression and why?
h=10t-4.9t^2
y=2square root x
A=2pi r^2
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Which of these is a quadratic expression and why?
h=10t-4.9t^2
y=2square root x
A=2pi r^2
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The ones that have a term to the 2nd power.