Find the exact value of y, or state that y is undefined.y = tan-1 
A. 
B. - 
C. 
D. 
Answer: A
Mathematics
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Decide whether the given number is a solution of the given equation.Is 9 a solution of 4(r + 9) = 45?
A. yes B. no
Mathematics
Solve the problem.Two pulleys of diameter 9 m and 3 m are connected by a belt. The larger pulley rotates 44 times per min. Find the angular velocity of the smaller pulley.
A. 132? radians/min B. 396? radians/min C. 198? radians/min D. 264? radians/min
Mathematics
Plot the ordered pair. State in which quadrant or on which axis the point lies.(-2, 3)
A. quadrant IV
B. quadrant III
C. quadrant I
D. quadrant II
Mathematics
Solve.Suppose that $12,000 is invested at an interest rate of 5.8% per year, compounded continuously. What is the doubling time?
A. 12 yr B. 13 yr C. 11 yr D. 2 yr
Mathematics