Add and subtract as indicated.18 + 4 - (-19)
A. -5
B. -41
C. 3
D. 41
Answer: D
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Find the equation of the directrix of the conic. Select the correct answer.
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Use the given information about the polynomial function f(x) to write its complete factored form.Degree 3; zeros: -5, 1, -2; leading coefficient = 1
A. ff(x) = (x + 5)(x + 1)(x + 2) B. f(x) = (x - 5)(x - 1)(x - 2) C. f(x) = (x - 5)(x + 1)(x - 2) D. f(x) = (x + 5)(x - 1)(x + 2)
Find the center and radius of a circle given an equation in standard form.
A. C(0, 0), 
B. C(0, 0), 
C. C(0, 0), 
D. C(0, 2), 
Solve the problem.Wildlife management personnel use predator-prey equations to model the populations of certain predators and their prey in the wild. Suppose the population M of a predator after t months is given by M = 750 + 125 sin 
twhile the population N of its primary prey is given by N = 12,250 + 3050 cos 
t.Calculate both M and N for t = 3, t = 15, and t = 27 months. Explain the answers in terms of reference angles. Without calculating them, what will be the values of M and N for t = 39 months?
What will be an ideal response?