Answer:
4,200 liters
Step-by-step explanation:
The flow rate is given by:

Integrating the flow rate expression from t=0 to t=30 minutes, yields the total volume that flows out of the tank during that period:

4,200 liters of water flow from the tank during the first 30 minutes.
Answer:
12i + 2
Step-by-step explanation:
Combine like terms.
-1 + 3 = 2
5i + 7i = 12i
12i + 2 is your answer.
~
Answer:
28.5% Internet users in 2003 were in the United States.
Step-by-step explanation:
We are given the following in the question:
Number of people using the internet =

Number of people in United States =

Percent of Internet users in 2003 were in the United States =

Thus, 28.5% Internet users in 2003 were in the United States.
Even function
(unchanged under reflection over y-axis)
Hope this helped :)