Solve.The sum of the squares of the digits of a positive two-digit number is 20, and the tens digit is 2 more than the units digit. Find the number.
A. 35
B. 53
C. 42
D. 24
Answer: C
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Solve the problem.The batting percentages of some of the players on the company softball team are .240, .325, .208, .280, .244, .323, and .283. What is the average batting percentage of these players? Round to the nearest thousandth.
A. .285 B. .272 C. .317 D. .247
Solve the problem.The average price (in dollars) to rent a studio in a certain city can be approximated by the equation 
where t is the number of years since 1990. Solve this equation for t and use the new equation to determine approximately what year it will be when the average price of a studio in this city reaches $1138.40.
A. 2012 B. 2014 C. 2011 D. 2013
Find the exact value of the expression using the provided information.Find cos(s - t) given that sin s = - 
, with s in quadrant IV, and 
with t in quadrant IV.
A. 
B. 
C. 
D. 
Solve the problem.A town's average monthly temperature data is represented in the table below: 
Find a sinusoidal function of the form 
that fits the data.
A. y = 87.1 sin 
+ 30.3
B. y = 28.4 sin 
+ 58.7
C. y = 58.7 sin 
+ 28.4
D. y = 30.3 sin 
+ 87.1