Evaluate the expression for x = -2, y = 3, z = -4.-5x - 7y - 4z
A. 15
B. 7
C. 5
D. 26
Answer: C
Mathematics
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Add and subtract as indicated.-8 + 12 - (-20)
A. -16 B. -40 C. 24 D. -24
Mathematics
If possible, find the mode(s) of the data set.7.27, 7.41, 7.56, 7.27, 7.88, 7.99, 7.62
A. 7.571 B. 7.27 C. 7.41 D. 7.56
Mathematics
Determine (by trial and error) the chromatic number of the graph.
a. 3
b. 4
c. 6
d. 2
Mathematics
Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.A salesman sold $150 more than the rest of the sales staff. If the sales total for the day was $1100, how much did the rest of the sales staff sell?
A. $475 B. $950 C. $550 D. $625
Mathematics