Add or subtract as indicated.9 + (-3)
A. 12
B. 6
C. -12
D. -6
Answer: B
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Solve the problem.Find the number of units that must be produced and sold in order to yield the maximum profit, given the following equations for revenue and cost:R
= 7xC
= 0.001x2 + 1.1x + 40.
A. 2950 units B. 4050 units C. 5900 units D. 8100 units
Provide an appropriate response.Which of the following is not possible?
A. A distribution is right-skewed and the mean is greater than the median B. A distribution has a single peak and the mean and median are different C. A distribution is not symmetric and the median is equal to the mean D. A distribution is left-skewed and the mean is equal to the median
Use simple probability to complete the exercises.A single die is rolled twice. The set of 36 equally likely outcomes is {(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6), (2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6), (3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6), (4, 1), (4, 2), (4, 3), (4, 4), (4, 5), 
(5, 1), 
(5, 3), (5, 4), (5, 5), (5, 6), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6),}. Find the probability of getting two numbers whose sum is greater than 9.
A. 
B. 6
C. 
D. 
Solve.The equation of a line is y = - 7x. What is the slope of a line perpendicular to it?
A. 0
B. 7
C. - 7
D. 