Solve the problem.The revenue achieved by selling x graphing calculators is figured to be 
The cost of each calculator is 
How many graphing calculators must be sold to make a profit (revenue - cost) of at least $75.00?
A. {x?16 < x < 14}
B. {x?5 < x < 15}
C. {x?15 < x < 25}
D. {x?17 < x < 23}
Answer: C
Mathematics
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Solve the problem.Use the Maclaurin expansion of cos x to find 
.
A. 0
B. 
C. 1
D. ?
Mathematics
Decide whether the slope is positive, negative, zero, or undefined.
A. Zero B. Undefined C. Positive D. Negative
Mathematics
Solve.A Porsche 911S has a 2341 cu cm engine. What is its cylinder displacement in cubic inches? Round to the nearest cu in.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the problem.Evaluate P + Prt, for P = 3000, r = 0.07, and t = 2.5.
A. 3495 B. 3630 C. 525 D. 3525
Mathematics