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

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(52778) (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 (!)

RELATED QUESTIONS
The function Q (1)= 0.003r 0.625t 25 represents the amount of energy in a battery after t (answered by ikleyn)

The function Q (t)= 0.003t^2 - 0.625t + 25 represents the amount of energy in a battery... (answered by htmentor)

The function Q (t) = 0.003t^2 � 0.625t + 25 represents the amount of energy in a battery... (answered by josmiceli)

The half-life of a radioactive substance is 1 minute. A 35.7 g sample of this substance... (answered by josgarithmetic)

The following problem concerns laptop computer batteries. As the computer runs, the total (answered by stanbon)

When a softball player swings a bat, the amount of energy E(t), in joules, that is... (answered by MathLover1)

Your kindly, old professor drives a Toyota Avalon to work to teach his beloved students.... (answered by ikleyn)

In a controlled experiment, the temperature T°C of a liquid, t hours after the start of... (answered by t0hierry)

[ Jessica is saving for college using a direct deposit from her paycheck into a saving... (answered by TimothyLamb)