Add.-39 + (-8)

A. -47
B. -31
C. 31
D. 47


Answer: A

Mathematics

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Solve.The average value of a certain type of automobile was $20,460 in 2006 and depreciated to $14,880 in 2011. Let y be the average value of the automobile in the year x, where x = 0 represents 2006. Write a linear equation that relates value y to year x.

A. y = -1116x + 9300
B. y = - x - 14880
C. y = -1116x + 14,880
D. y = -1116x + 20,460

Mathematics

Write the fraction as a decimal.

A. 0.7 B. 0.007 C. 0.07 D. 7.0

Mathematics

Find all solutions of the equation.8 sin x - 9 = 6 sin x- 8

A. x =  + n? or x =  + n?
B. x =  + 2n? or x =  + 2n?
C. x =  + n? or x =  + n?
D. x =  + 2n? or x =  + 2n?

Mathematics

Write the decimal in numbers.One hundred and two tenths

A. 10.2 B. 0.102 C. 100.2 D. 102.0

Mathematics