SOLUTION: The function Q (t) = 0.003t^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 b
Algebra.Com
Question 1069403: The function Q (t) = 0.003t^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.
(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 josmiceli(19441) (Show Source): You can put this solution on YOUR website!
(a)
At
---------------------
(b)
units of energy used in min
average energy/min
produced for
------------------
(c)
When does ?
Use quadratic formula
------------------
and
---------------
Here's the plot:
This tells me that at min the energy is zero
I can ignore the root
RELATED QUESTIONS
The function Q (t)= 0.003t^2 - 0.625t + 25 represents the amount of energy in a battery... (answered by htmentor)
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)= 0.003r^2 - 0.625t 25 represents the amount of energy in a battery... (answered by ikleyn)
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)