Tell whether a linear model or a quadratic model is appropriate for the data. If a quadratic model is appropriate, then decide also whether the lead coefficient should be positive or negative.The amount of sales tax paid as a function of the sales price.

A. Quadratic; leading coefficient negative
B. Linear
C. Quadratic; leading coefficient positive


Answer: B

Mathematics

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A radio station operating on 750 kHz has a carrier frequency of:

a. 750,000 Hz b. 7,500,000 Hz c. 75,000,000 Hz d. 75,000 Hz e. 7,500 Hz

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Find the limit algebraically.

A. -9 B. 0 C. 9 D. 1

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Solve.Let f(x) = -3x + 3  and g(x) = 9x2 - 3. Find f(5) ? g(5) .

A. -2664 B. -2700 C. -3375 D. -3330

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Twelve people apply for a job, 7 men and 5 women. If four people are hired at random, find the probability at least two women are hired.

What will be an ideal response?

Mathematics