Find the distance between the two points on the coordinate plane. If necessary, round the answer to the nearest thousandth.(-7
, -10
) and (8
, -6
)
A. 
units ? 4.123 units
B. 787 units
C. 
units ? 28.054 units
D. 17 units
Answer: C
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Use the substitution method to solve the system. x + 3y = 12-5x + 4y = 16
A. (-4, 0) B. (1, 3) C. (0, 4) D. No solution
Solve the problem.Suppose a car rental company charges $94 for the first day and $44 for each additional or partial day. Let S(x) represent the cost of renting a car for x days. Find the value of S(3.5).
A. $226 B. $154 C. $248 D. $204
Add or subtract, as indicated.16
- 5
A. 11
B. 11
C. 6
D. 10
Solve the problem.Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0. The following data were obtained regarding their GPAs on entering the program versus their current GPAs. 
Find the regression line y = mx + b.
A. y = 0.329x + 2.51 B. y = 0.0313x + 3.67 C. y = 0.0212x + 4.91 D. y = 0.497x + 5.81