Sketch the graph of the given equation over the interval [-2?, 2?].y = cos 
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.A couple have bought a new house and are comparing quotes from two moving companies for moving their furniture. Company A charges $100 for the truck and $45 per hour for the movers. Company B charges $90 for the truck and $60 per hour for the movers. Create a cost equation for each company where y is the total cost and x is the number of hours of labor. Write a system of equations.
A. 45y = x + 100 60y = x + 90 B. y = 45x + 100 y = 60x + 90 C. 45y = 100x 60y = 90x D. y = 100x + 45 y = 90x + 60
Solve the equation.x(6x + 12) = 0
A. 0, 2
B. -2, 0
C. 0, 
D. - 
, 0
List the critical values of the related function. Then solve the inequality.
? 
A. 4; (-?, 4] B. No critical values; (-?, ?) C. 8; [8, ?) D. No critical values; ?
Find the center of the hyperbola.6x2 - y2 - 36x + 10y - 121 = 0
A. (3, 5) B. (3, 0); C. (-3, -5) D. (-2, 5);