Find the equation of the least squares line.In the table below, x represents the number of years since 2000 and y represents annual sales (in thousands of dollars) for a clothing company. 
A. y = 3.31x + 23.8
B. y = 5.18x + 20.6
C. y = 4.37x + 21.7
D. y = 2.61x + 25.9
Answer: A
Mathematics
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Factor completely.8a4 - 50b2
A. 2(2a2 + 5b)(2a2 - 5b) B. 2(2a2 - 5b)2 C. Prime D. 2(2a2 + 5b)2
Mathematics
Solve the problem.Find the volume of a cylinder with radius 8 cm and height 7 cm. Use 3.14 for ?. Round your answer to the nearest tenth.
A. 753.6 cm3 B. 577.8 cm3 C. 1406.7 cm3 D. 376.8 cm3
Mathematics
Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 3
C. 3
D. 
Mathematics
Provide an appropriate response.There are ten students in the drafting program. Their ages are 37, 34, 18, 20, 37, 26, 21, 27, 29, 31. Find the mean of the ages.
Fill in the blank(s) with the appropriate word(s).
Mathematics