Graph the function.y = -3 cot 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the vertex of the given parabola.f(x) = 2x2 + 20x + 47
A. (3, 5) B. (-3, -5) C. (5, 3) D. (-5, -3)
Mathematics
Graph the linear function by plotting the x- and y-intercepts.20x + 40y = 80
A. intercepts: (0, -2), (4, 0)
B. intercepts: (0, 2), (4, 0)
C. intercepts: (0, 2), (-4, 0)
D. intercepts: (0, -2), (-4, 0)
Mathematics
Solve with calculator.The formula 
models the duration of a storm, D, in hours, in terms of the diameter of the storm, x, in miles. Use a calculator to determine the duration of a storm with a diameter of 7 miles. Round to the nearest hundredth.
A. 0.19 hours B. 1.3 hours C. 0.34 hours D. 18.52 hours
Mathematics
Use the remainder theorem and synthetic division to find P(k).k = -2; P(x) = -x3 - 3x2 + 2
A. -1 B. 2 C. -17 D. -2
Mathematics