Translate the phrase to an algebraic expression.Nine times x
A. 9x
B. 9 - x
C. 
D. 9 + x
Answer: A
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Solve the problem.Assume that the mathematical model C(x) = 19x + 170 represents the cost C, in hundreds of dollars, for a certain manufacturer to produce x items. How many items x can be manufactured if the cost is to be kept between $739,000 and $1,100,000?
A. {x 
570 < x < 760}
B. {x 
600 < x < 800}
C. {x 
380 < x < 570}
D. {x 
400 < x < 600}
Match the given function to its graph.1) y = sin (x - 
)2) y = cos (x + 
)3) y = sin (x + 
)4) y = cos (x - 
)A B
height="201" width="200" />C D
A. 1B, 2D, 3C, 4A
B. 1C, 2A, 3B, 4D
C. 1A, 2B, 3C, 4D
D. 1A, 2D, 3C, 4B
Solve the system by graphing.x + y = -2x - y = -16
A. (7, -9) B. Infinite number of solutions C. No solution D. (-9, 7)
Apply the Rule of Negative Exponents and evaluate.12-2
A. - 
B. 
C. 
D. -144