Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 6.8x - 150.7
B. y = 6.2x - 140.4
C. y = -6.8x + 150.7
D. y = -6.2x + 140.4
Answer: D
Mathematics
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, calculate the value of 
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?
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Give an appropriate answer.Find all points (x, y) at which the tangent plane to the graph 
is horizontal.
A. (0, 1) B. (x, 1) C. (x, 1), (x, -1) D. (0, 1), (0, -1)
Mathematics
Find the number of subsets of the set.{x | x is an even number between 19 and 37}
A. 256 B. 68 C. 8 D. 512
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Solve the problem.Jose Ramirez, a salesperson for a chemical company, travelled 1,539 miles on Monday, 407 miles on Tuesday, and 1,955 miles on Thursday. Find the total number of miles he travelled during these three days.
A. 3,901 mi B. 3,494 mi C. 3,801 mi D. 3,087 mi
Mathematics