Find the amplitude, period, or phase shift of the given function as requested.Find the amplitude of y = 3 cos
A. - 
B. -3
C. 
D. 3
Answer: D
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Solve the problem.Integrate 
over the region 0 ? x2 + y2 ? 49.
A. 28?(ln 7 - 1) B. 14?(ln 7 - 1) C. 14?(2 ln 7 - 1) D. 28?(2 ln 7 - 1)
Solve.A multiple birth is any birth with 2 or more children born. The birth rate is the number of births per 1000 women. In one country, the birth rate B of multiple births as a function of age a is given by the function 
for 
What is the domain of the linear function?
A. (15, 47) B. [15, 47] C. [2, ?) D. [15, ?)
Find the x-intercepts of the graph of the equation.y = x3 + x2 - 6x
A. (-3, 0), (2, 0) B. (0, 0), (-3, 0), (2, 0) C. (1, 0), (2, 0) D. (0, 0), (1, 0), (2, 0)
Find the slope of the tangent line to the graph at the given point.f(x) = 2x2 + x - 3 at (4, 33)
A. 5 B. 19 C. 17 D. 15