Mathematical Applications for the Management, Life, and Social Sciences 11th Edition by Ronald J. Ha
c.
d.
e.
ANSWER: d
18. Solve the inequality.
a.
b.
c.
d.
e.
ANSWER: a
19. Solve the inequality.
a.
b.
c.
d.
e.
ANSWER: d
20. Solve the inequality.
a. x < 18
b. x > 18
c. x > –18
d. x < –18
e. x > 14
ANSWER: b
21. Solve the inequality.
a.
b.
c.
d.
e.
ANSWER: d
22. Solve the inequality.
a.
b.
c.
d.
e.
ANSWER: b
23. Solve the inequality and choose the graph of the solution.
a.
b.
c.
d.
e.
ANSWER: c
24. Solve the inequality and choose the graph of the solution.
a.
b.
c.
d.
e.
ANSWER: b
25. Solve the inequality and choose the graph of the solution.
a.
b.
c.
d.
e.
ANSWER: e
26. A $670,000 property is depreciated for tax purposes by its owner with the straight-line depreciation method. The value of the building y, after x months of use is given by dollars. After how many months will the value of the building be $339,000? Round your answer to the nearest whole number of months.
a. 561 months
b. 372 months
c. 184 months
d. 188 months
e. 377 months
ANSWER: c
27. When a $837,000 building is depreciated for tax purposes (by the straight-line method), its value y after x months of use is given by . How many months will it be before the building is fully depreciated (that is, its value is $0)?
a. 37 months
b. 372 months
c. 4 months
d. 27 months
e. 270 months
ANSWER: b
28. In seawater, the pressure p is related to the depth d according to , where d is in feet and p is in pounds per square inch. The Titanic was discovered at a depth of 12,460 ft. Find the pressure at this depth. Round your answer to the nearest whole number.
a. 6,781 lb/sq in
b. 22,871 lb/sq in
c. 22,816 lb/sq in
d. 6,811 lb/sq in
e. 6796 lb/sq in
ANSWER: d
29. Burnem, Inc. manufactures blank CDs and sells them to a distributor in packs of 500 CDs. Assume Burnem’s total cost and total revenue (in dollars) for x packs of 500 CDs are given by
Total cost =
Total revenue =
How many packs of 500 CDs must Burnem sell to break even?
a. 490 packs
b. 432 packs
c. 500 packs
d. 387 packs
e. 865 packs
ANSWER: a
30. Dish Systems manufactures satellite systems and has its monthly profit P in dollars related to the number of satellite systems x by . Find the number of systems that Dish Systems needs to produce and sell in order to break even.
a. 256 systems
b. 1,080 systems
c. 285 systems
d. 68 systems
e. 270 systems
ANSWER: e