Suppose that the total cost function for a radio is linear, that the marginal cost is $27, and that the total cost for 50 radios is $5,250. Write the equation of this cost function 
.
?
A. ?
B. 
C. 
D. 
E. 
Answer: D
Mathematics
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Solve the inequality.
< 5
A. x < -11, x > 19 B. -11 ? x ? 19 C. x < 19 D. -11 < x < 19
Mathematics
In a normal distribution, which of the following statements is/are true?
a. The curve has one peak with most of the data points on one side. b. The mode, mean, and median all occur at the same point. c. The standard deviation is the same as the spread. d. 99.7% of the values fall within one standard deviation.
Mathematics
Write the improper fraction as a whole or mixed number.
A. 6
B. 8
C. 7
D. 7
Mathematics
Find the requested value.
{x - 5, if x < 63 - x, if x ? 6
A. 3 B. 1 C. -5 D. -3
Mathematics