Solve.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 50 seconds are required to make a 5-by-5 enlargement, find the time required for a 6-by-7 enlargement.
A. 126 sec
B. 42 sec
C. 84 sec
D. 168 sec
Answer: C
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Solve the problem.The NSC (Not So Consistent) Corporation has just completed its first year of business. The following chart shows its monthly profit (or loss).MonthProfit (Loss) in DollarsJanuary-14,526February1874March-8977April-14,107May14,073June14,632July-13,834August-13,170September-4860October6630November-3338December-974The profit was smallest in 
.
A. February B. December C. June D. January
Evaluate the integral.
A. 
x2 + 3x - 9
B. 
x2 + 3x - 9
C. 21y4 - 
D. 
y4 - 12
The scores on a standardized test form a normal distribution with mean of 140 and standard deviation of 12. If 36,000 students took the test, how many scored above 149?
What will be an ideal response?
Find the surface area of the figure. Use 3.14 for ?. Round your answer to hundredths.
A. 2,632 sq. ft B. 5,520 sq. ft C. 1,316 sq. ft D. 1,712 sq. ft