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MATH1920Chapter7Section1Homework

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Set up the definite integral that gives the area of the region bounded by the graph of mc001-1.jpg and mc001-2.jpg.

mc001-3.jpg
a.
mc001-4.jpg
b.
mc001-5.jpg
c.
mc001-6.jpg
d.
mc001-7.jpg
e.
mc001-8.jpg
 

 2. 

Find the area of the region bounded by the equations by integrating (i) with respect to x and
(ii) with respect to y.

mc002-1.jpg
a.
mc002-2.jpg
b.
mc002-3.jpg
c.
mc002-4.jpg
d.
mc002-5.jpg
e.
mc002-6.jpg
 

 3. 

Find the area of the region bounded by equations by integrating (i) with respect to x and
(ii) with respect to y.

mc003-1.jpg
a.
mc003-2.jpg
b.
mc003-3.jpg
c.
mc003-4.jpg
d.
mc003-5.jpg
e.
mc003-6.jpg
 

 4. 

Find the area of the region bounded by the graphs of the algebraic functions.

mc004-1.jpg
a.
mc004-2.jpg
b.
mc004-3.jpg
c.
mc004-4.jpg
d.
mc004-5.jpg
e.
mc004-6.jpg
 

 5. 

Find the area of the region bounded by the graphs of the algebraic functions.

mc005-1.jpg
a.
mc005-2.jpg
b.
mc005-3.jpg
c.
mc005-4.jpg
d.
mc005-5.jpg
e.
mc005-6.jpg
 

 6. 

Find the area of the region bounded by the graphs of the algebraic functions.

mc006-1.jpg
a.
mc006-2.jpg
b.
mc006-3.jpg
c.
mc006-4.jpg
d.
mc006-5.jpg
e.
mc006-6.jpg
 

 7. 

Find the area of the region bounded by the graphs of the algebraic functions.

mc007-1.jpg
a.
mc007-2.jpg
b.
mc007-3.jpg
c.
mc007-4.jpg
d.
mc007-5.jpg
e.
mc007-6.jpg
 

 8. 

Find the area of the region bounded by the graphs of the equations.

mc008-1.jpg
a.
mc008-2.jpg
b.
mc008-3.jpg
c.
mc008-4.jpg
d.
mc008-5.jpg
e.
mc008-6.jpg
 

 9. 

Find the area of the region bounded by the graphs of the function mc009-1.jpg. Round your answer to three decimal places.
a.
20.723
b.
11.182
c.
6.238
d.
10.362
e.
22.364
 

 10. 

Find the area of the region bounded by the graphs of the function mc010-1.jpg mc010-2.jpg. Round your answer to three decimal places.
a.
0.260
b.
0.289
c.
0.416
d.
0.139
e.
0.462
 

 11. 

Find the area of the region bounded by the graphs of the equations.

mc011-1.jpg.
a.
mc011-2.jpg
b.
mc011-3.jpg
c.
mc011-4.jpg
d.
mc011-5.jpg
e.
mc011-6.jpg
 

 12. 

If the accumulation function mc012-1.jpg is given by mc012-2.jpg, evaluate mc012-3.jpg
a.
mc012-4.jpg
b.
mc012-5.jpg
c.
mc012-6.jpg
d.
mc012-7.jpg
e.
mc012-8.jpg
 

 13. 

Suppose that mc013-1.jpg and mc013-2.jpg model the revenue (in billions of dollars) for a large corporation. The model mc013-3.jpg gives projected annual revenues from 2008 through 2015, with mc013-4.jpg corresponding to 2008, and mc013-5.jpg gives projected revenues if there is a decrease in the rate of growth of corporate sales over the period. Approximate the total reduction in revenue if corporate sales are actually closer to the model mc013-6.jpg. Round your answer to three decimal places.
a.
$3.570 billion
b.
$24.990 billion
c.
$19.763 billion
d.
$29.645 billion
e.
$12.495 billion
 

 14. 

The chief financial officer of a company reports that profits for the past fiscal year were $mc014-1.jpg million. The officer predicts that profits for the next 7 years will grow at a continuous annual rate somewhere between mc014-2.jpg% and 6%. Estimate the cumulative difference in total profit over the 7 years based on the predicted range of growth rates. Round your answer to three decimal places.
a.
$445.736 billion
b.
$30.221 billion
c.
$7.023 billion
d.
$18.710 billion
e.
$57.880 billion
 

 15. 

The surface of a machine part is the region between the graphs of mc015-1.jpg and mc015-2.jpg as shown in the figure. Find k if the parabola is tangent to the graph of mc015-3.jpg. Round your answer to three decimal places.

mc015-4.jpg
a.
3.125
b.
0.160
c.
0.080
d.
0.320
e.
6.250
 

 16. 

The surface of a machine part is the region between the graphs of mc016-1.jpg and mc016-2.jpg as shown in the figure. Find the area of the surface of the machine part. Round your answer to five decimal places.

mc016-3.jpg
a.
1.66667
b.
0.41667
c.
0.01333
d.
33.33333
e.
8.33333
 

 17. 

Concrete sections for the new building have the dimensions (in meters) and shape as shown in the figure (the picture is not necessarily drawn to scale). Find the area of the face of the section superimposed on the rectangular coordinate system. Round your answer to three decimal places.

mc017-1.jpg
a.
25.031 mc017-2.jpg
b.
31.075 mc017-3.jpg
c.
29.151 mc017-4.jpg
d.
30.515 mc017-5.jpg
e.
28.031 mc017-6.jpg
 

 18. 

Concrete sections for the new building have the dimensions (in meters) and shape as shown in the figure (the picture is not necessarily drawn to scale). One cubic meter of concrete weighs 4320 pounds. Find the weight of the section. Round your answer to the nearest pound.

mc018-1.jpg
a.
268,492 pounds
b.
263,654 pounds
c.
216,267 pounds
d.
242,187 pounds
e.
251,865 pounds
 



 
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