Find the exact value. If any are not defined, write undefined.cos(-540)°

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


Answer: A

Mathematics

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Solve the problem.The grade point average, G, of students at a community college is shown by age, x, in the table below. Use the line connecting the points (18, 2.5) and (26, 3.2) to find a linear model for this data. 

A. G = 0.1x + 0.7 B. G = 0.0875x + 2.5875 C. G = 0.0875x + 0.925 D. G = 0.0875x - 0.925

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Determine if the given point is a solution of the inequality.(-2, 2); 4x - 4y ? 1

A. A solution B. Not a solution

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Find the slope of the line going through the pair of points.(6, 0), (0, 8)

A. 0.75 B. 1.33 C. 3.33 D. -1.33

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Solve the problem.A cellular phone plan had the following schedule of charges:Basic service, including 100 minutes of calls$20.00 per month2nd 100 minutes of calls$0.075 per minuteAdditional minutes of calls$0.10 per minuteWhat is the charge for 200 minutes of calls in one month?What is the charge for 250 minutes of calls in one month?Construct a function that relates the monthly charge C for x minutes of calls.

What will be an ideal response?

Mathematics