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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Identify the intercepts.
A. (2, 0), (0, 8) B. (-2, 0), (0, -8) C. (-2, -2), (8, 8) D. (-2, 0), (0, 8)
Mathematics
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
Mathematics
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
Mathematics
Solve.
= 
A. 12 B. 3 C. 5 D. 15
Mathematics