Definitely Maybe
Indefinitely Probably
The Substitute
Nothing But Net
Area 51
100

Evaluate: 

int_3^4(x + 7x^2)dx

What is 539/6

100

Find the integral 

int(3x^3+5x-7)dx

What is 

3/4 x^4+5/2 x^2-7x+C

100

Find the integral

int 3x^2(x^3+2)^5dx

What is 

1/6 (x^3+2)^6 + C

100

If V'(t) is the rate at which water flows into the reservoir at time t (in days). Interpret the meaning of Int(V'(t),t,3,9).

What is the amount of water that flows into the reservoir between days 3 and 9.

100

Find the area under the curve y=x^2 from x = 1 to x = 2. 

What is 7/3

200

Evaluate 

int_-1^3 1/x dx

What is ln(3)

200

Find the integral 

int (1/t - 2/t^2)dt

What is 

ln|t| + 2/t + C

200

Find the integral 

int45e^(0.15x) dx

What is 

300e^(0.15x)+C

200

If G'(t) represents the rate at which the number of gallons of gasoline are pumped from a local gas station between days a and b, interpret the meaning of 

int_5^10 G'(t)dt

The integral represents the total amount of gasoline pumped from the local gas station between days 5 and 10.

200

Setup an integral to find the area in the image below:

What is 7/2

300

Evaluate 

int_4^9(2x + 3sqrt(x))dx

What is 103

300

Find the integral 

int (x^(3/2) + 1/5sqrt(x))dx

What is 

2/5*x^(5/2) + 2/15*x^(3/2) + C

300

Find the integral 

int (x + 1) / (x^2 + 2x + 19) dx

What is 

1/2ln(x^2 + 2x + 19)+ C

300

Power P(t) gives the rate of change of energy, for a day in September for the city of San Francisco, in MegaWatts, with t measured in hours starting at midnight. Interpret the meaning of 

int_0^24 P'(t)dt

What is total amount of MegaWatts used in the day.

300

Find the are of the region bounded by 

f(x)=x^2-9

, the x-axis, and the vertical lines x = 1 and x = 4.

What is 

38/3

400

Evaluate 

int_1^2(e^x + 6/x^4)dx

What is 

e^2 - e + 7/4

400

Evaluate:  

int_0^2 10e^(-5x)dx

What is 

400

A company's financial analyst is advising the management that an investment in new technology will save it money at the rate of 

S'(t)=4,000(1-0.07e^(-0.07t))

dollars per month t months after the purchase of the new technology.

The analyst advised the management that if it purchases the new technology, it will save, through the next 24 months, just over $100,000.  As a manager, would you accept or reject the analyst's claim?  Explain.



The savings over the next 24 months are $92,746, so the analyst's claim is too high.  It should be rejected.

400

Find the area completely enclosed by 

f(x)=2-x^2

and

g(x)=x

What is 9/2 or 4.5

500

Evaluate 

int_0^1 x/(1 + 5x^2)dx

What is ln(6/10)

500

Find the exact area of the shaded region shown below:

What is 23/2