Perform the indicated operation.18 + (-12) + (-18)
A. 48
B. -12
C. 24
D. 12
Answer: B
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Solve.A window is in the shape of a square topped by a semicircle. The side of the square is x cm and the window cannot be wider than 160 cm. Find the function for the area of the window and the domain of the function.
A. A = x2 + 
?x2 : 0 < x ? 160
B. A = x2 + 
?
2 : 0 < x ? 1602 + 
?
2
C. A = 4x2 + 
?x2 : 0 < x ? 160
D. A = x2 + 
?
2 : 0 < x ? 160
Evaluate the integral. 
(Give your answer in exact form.)
A. 
B. 
- 
C. 
- 
D. 
- 
Find the indicated quantities for the appropriate arithmetic sequence.If a person puts 1¢ in a piggy bank on the first day, 2¢ on the second day, 3¢ on the third day, and so forth, how much money will be in the bank after 50 days?
A. $0.50 B. $6.38 C. $25.50 D. $12.75
Identify the abuse of statistics.A company accused of downsizing workers defended itself with the following statement "Yes, we were forced to lay off 20% of our workforce last year, but this year we increased our workforce by 20% and we therefore now have the same number of employees as before the layoff." What is the flaw in this argument?
What will be an ideal response?