Write an equation for the function that is described by the given characteristics.
?
A cosine curve with a period of 4?, an amplitude of 7, a right phase shift of 
, and a vertical translation up 2 units.
?
A. 
B. 
C. 
D. 
E. 
Answer: A
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Factor.a2 - 5ab - 36b2
A. (a - 4b)(a + 9b) B. (a + 4b)(a - 9b) C. (a - 4b)(a + b) D. prime
Solve the problem.How long would it take to drive a distance of 11 miles if you drive at a constant speed of 53 miles per hour? Round your answer to the nearest hundredth if necessary.(Distance = Speed × Time)
A. 583.0 hours B. 0.21 hours C. 2.08 hours D. 4.82 hours
Graph the function.y = sec 
A. 
B. 
C. 
D. 
Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: {x|-6 ? x ? 6} range: {y|-6 ? y ? 6} intercepts: (-6, 0), (0, -6), (0, 0), (0, 6), (6, 0) symmetry: origin B. function domain: {x|-6 ? x ? 6} range: {y|-6 ? y ? 6} intercepts: (-6, 0), (0, -6), (0, 6), (6, 0) symmetry: x-axis, y-axis C. function domain: {x|-6 ? x ? 6} range: {y|-6 ? y ? 6} intercepts: (-6, 0), (0, -6), (0, 6), (6, 0) symmetry: x-axis, y-axis, origin D. not a function