1
∫ f(x) dx = x⁵/5 + 3x⁴/4 - 5x³/3
-1
[1⁵/5 + 3⁴/4 - 5³/3] - [ -1⁵/5 -3⁴/4 +5³/3]
plug that into your calculator and that's your rate of change
It is 9.25 gallons, I hope this helps :)
The rounded answer is 9.1 hours. The non-rounded answer is 9.11428571429 hours.
First convert all the fractions to decimals, add all the decimals, and then divide by the number of countries to get your answer.
Add in your average use too for the problem.
The answer would be false.
The answer is 52
75.2 -31= 0.85 in
44.2=0.85n
Divid that then it's 52