Calculate. × 15.71

A. 11.775
B. 13.74625
C. 11.7825
D. 12.568

Answer: C

Mathematics

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Simplify.(x-6)2

A. x12
B.
C.
D. x-4

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Mathematics

Solve and graph the solution set.-3(5x - 7) < -18x + 9

A. {x|x< -4} or (-?, -4)

B. {x|x < -18} or (-?, -18)

C. {x|x > -4} or (-4, ?)

D. {x|x > -18} or (-18, ?)

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Mathematics

Write a matrix equation equivalent to the system of equations.-2x + 8y + 3z = 0 2x + 2y - 2z = -12 2x + 6y + 6z = 44

A.  
 =
B.
 =
C.

?
  = 
D.
  = 

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Mathematics

Solve the problem.Revenues for an online retail store are shown in the table for various years. Let r be the store's revenue (in millions of dollars) for the year that is t years since 1995.a. Use the linear model to estimate the revenue in 1995.b. Use the linear model to predict the revenue in 2006.c. Use the model to estimate the revenue in 2003. Is this an underestimate or overestimate? Calculate the error in the estimate.

What will be an ideal response?

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Mathematics