Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 1.03x + 18.9
B. y = 1.17x + 18.9
C. y = 1.17x + 16.4
D. y = 1.03x + 16.4
Answer: C
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Find a formula for the nth term of the sequence.7, -7, 7, -7, 7 (7's with alternating signs)
A. an = 7(-1)2n+1 B. an = 7(-1)2n-1 C. an = 7(-1)n+1 D. an = 7(-1)n
Solve the problem.Two cars leave an intersection. One car travels north; the other east. When the car traveling north had gone 9 mi, the distance between the cars was 3 mi more than the distance traveled by the car heading east. How far had the eastbound car traveled?
A. 18 mi B. 9 mi C. 15 mi D. 12 mi
Translate the question into a proportion. Do not solve.55 is 81% of what number?
A. 
= 
B. 
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C. 
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D. 
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Find the given Sn for the arithmetic series.7 + 12 + 17 + 22 + . . . . Find S28.
A. 7952 B. 2086 C. 4172 D. 4312