C.25% of children are in someone else's home
Hi there!
a.
To find the total amount of people that have ENTERED by t = 20, we must take the integral of the appropriate function.

Evaluate using a calculator:

b.
To solve, we can find the total amount of people that have entered of the interval and subtract the total amount of people that have left from this value.
In other terms:

We can evaluate using a calculator (math-9 on T1-84):


c.
If:

Then:

Evaluate at t = 20:


This means that at t = 20, there is a <u>NET DECREASE</u> of people at the movie theater of around 20.823 (21) people per hour.
d.
To find the maximum, we must use the first-derivative test.
Set S(t) - R(t) equal to 0:

Graph the function with a graphing calculator and set the function equal to y = 0:
According to the graph, the graph of the first derivative changes from POSITIVE to NEGATIVE at t ≈ 17.78 hours, so there is a MAXIMUM at this value.
<u>Thus, at t = 17.78 hours, the amount of people at the movie theater is a MAXIMUM.</u>
Answer:
the way the Constitution is interpreted.
Explanation:
Answer:
Explanation:
14) Horrible English.
You can't have more than 2600 lbs on the elevator
or
You can have no more than 2600 lbs on the elevator.
"Can't have no more" is a double negative and quite confusing. It actually mean you Must have more than 2600 lbs on the elevator.
500 + 140x ≤ 2600
500 - 500 + 140x ≤ 2600 - 500
140x ≤ 2100
140x/140 ≤ 2100/140
x ≤ 15 people
15) $2.49(1.80) = $4.48
A case study
I did that already