Find the exact value. Do not use a calculator.cos ?
A. 1
B. 0
C. -1
D. undefined
Answer: C
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Solve the equation.-4z = - 
A. - 
B. 
C. - 
D. 
Suppose the triangles shown are similar with angle A = angle D, angle B = angle E, and angle C = angle F. Answer the question.
What is the length of side DF?
A. 22 B. 54 C. 40 D. 86
Analyze the graph of the given function f as follows:(a) Determine the end behavior: find the power function that the graph of f resembles for large values of |x|.(b) Find the x- and y-intercepts of the graph.(c) Determine whether the graph crosses or touches the x-axis at each x-intercept.(d) Graph f using a graphing utility.(e) Use the graph to determine the local maxima and local minima, if any exist. Round turning points to two decimal places.(f) Use the information obtained in (a) - (e) to draw a complete graph of f by hand. Label all intercepts and turning points.(g) Find the domain of f. Use the graph to find the range of f.(h) Use the graph to determine where f is increasing and where f is decreasing.f(x) = src="https://sciemce.com/media/4/ppg__10624191726__f1q156g1.jpg" style="vertical-align: -17.0px;" />x3 - 
x2 - 3x + 15
What will be an ideal response?
Find the y-intercept of the polynomial function.f(x) = (x - 2)2(x2 - 9)
A. 18 B. -18 C. 36 D. -36