SOLUTION: The function Q (t)= 0.003r^2 - 0.625t 25 represents the amount of energy in a battery after t minutes of use. (a) State the amount of energy held by the battery immediately befo

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: The function Q (t)= 0.003r^2 - 0.625t 25 represents the amount of energy in a battery after t minutes of use. (a) State the amount of energy held by the battery immediately befo      Log On


   

Question 1169608: The function Q (t)= 0.003r^2 - 0.625t 25 represents the amount of energy in a battery after t minutes of use.
(a) State the amount of energy held by the battery immediately before it was used.
(b) Calculate the amount of energy available after 20 minutes.
(c) Given that Q (10) = 19.05, find the average amount of energy produced per minute for the interval 10 ≤ t ≤ 20
(d) Calculate the number of minutes it takes for the energy to reach zero.
Answer by ikleyn(52776) About Me  (Show Source):
You can put this solution on YOUR website!
.

Look again into your formula and fix it ONE MORE TIME.

It is still DEFECTIVE (!)