Determine the amplitude and range of the function and sketch its graph.y = 5 cos x

A. amplitude: 5; range: [0, 5]

B. amplitude: 5; range: [-5, 5]

C. amplitude: 5; range: [0, 5]

D. amplitude: 5; range: [-5, 5]


Answer: D

Mathematics

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A. (2, 0), (0, 8) B. (-2, 0), (0, -8) C. (-2, -2), (8, 8) D. (-2, 0), (0, 8)

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Simplify the expression. Use positive exponents. Assume variables represent nonzero real numbers.(69 xy)(62 x)(63xyz)

A. 21654x3y2z B. 654x3y2 C. 614 x3y2z D. 21614x3z

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Fill in the blank with one of the words or phrases listed below.In a system of linear equations in two variables, if the graphs of the equations are different, the equations are  equations.

A. substitution B. addition C. independent D. dependent

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Solve. = 

A. 12 B. 3 C. 5 D. 15

Mathematics