Evaluate the indicated trigonometric function of the acute angle ?.If ? is an acute angle of a right triangle and if cot ? = 
, then find the value of sin ?.
A. 3
B. 
C. 
D. 
Answer: C
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Solve the problem.Money magazine reports that the percentage of trading days in which the Dasdaq loses or gains 2% or more has been increasing since 1995 indicating more volatility in the Dasdaq. Use a graphing utility to fit an exponential function to the data. Predict the percentage of trading days in 2001 having such swings in value.
A. y = 1.278e0.611x, 92 days B. y = 1.669x1.706, 46 days C. y = 1.849e0.531x, 76 days D. y = 2.353e0.610x, 91 days
For what values of x does the series converge conditionally?
A. x = -11, x = -5 B. x = -11 C. x = -5 D. None
Solve.A man earned $3500 the first year he worked. If he received a raise of $600 at the end of each year, what was his salary during the 15th year?
A. $11,900 B. $12,500 C. None of these D. $8400
Use the geometric interpretation of slope (rise divided by run) to find the slope of the line. Then, by identifying the y-intercept from the graph, write the slope-intercept form of the equation of the line.
A. y = - x + 6 B. y = x + 6 C. y = - x - 6 D. y = x - 6