Refer to the double-bar graph below which shows the number of male and female athletes at a university over a four-year period. Solve the problem.
Find the increase in the number of male athletes from year 3 to year 4.
A. 50
B. 75
C. 100
D. 475
Answer: C
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Multiply.7x(9x - 10)
A. 63x2 - 10x B. 63x2 - 70x C. 9x2 - 70x D. -7x2
Solve the problem.The average daily temperature T of a city in the United States is approximated by T = 55 - 23 cos 
(t -30)where t is in days, 1 ? t ? 365, and t = 1 corresponds to January 1. Find the period of T.
Fill in the blank(s) with the appropriate word(s).
Write the standard equation for the circle.Center at (22, 12), passing through the origin
A. (x - 12)2 + (y - 22)2 = 628 B. (x - 22)2 + (y - 12)2 = 628 C. (x - 12)2 + (y - 22)2 = 25 D. (x - 22)2 + (y - 12)2 = 25
Solve the problem.The data below represent the average monthly cost of natural gas in an Oregon home. 
Above is the graph of 47.35 sin x. Make a scatter diagram of the data. Find the sinusoidal function of the form 
which fits the data.
What will be an ideal response?