Determine the slope, if it exists, of the graph of the given linear equation.y = -4.1x + 3
A. m = 3
B. m = -3
C. m = -4.1
D. m = 4.1
Answer: C
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Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 
B. 
C. 
D. 
Use the data to construct a frequency distribution.
First Class = 19-20
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B. 
C. 
D. 
Solve the problem.In a Psychology class, the students were tested at the end of the course on a final exam. Then they were retested with an equivalent test at subsequent time intervals. Their average scores after t months are given in the table.
Using a graphing utility, fit a logarithmic function y = a + b ln x to the data. Using the function you found, estimate how long will it take for the test scores to fall below 84%. Express your answer to the nearest month.
A. 12 months B. 20 months C. 8 months D. 10 months
Solve the problem. Round to the nearest tenth if necessary.The price of a printer was reduced from $400 to $240. What was the percent of decrease?
A. 60% B. 40% C. 45% D. 66.7%