Divide. Write a mixed numeral for the answer whenever possible.-27 ÷ 2

A. -11
B. -12
C. -10
D. -13


Answer: B

Mathematics

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Mathematics

Find an equation of the line that contains the given point and is perpendicular to the given line.x + 5y = -5, (5, 5)

A. y = 5x - 30
B. y = - x + 4
C. y = 5x - 20
D. y = x + 4

Mathematics

Solve the problem.Jeff studied math for 5 hours, history for 1 hours, and physics for 1 hours. How long did he study?

A. 1 hr
B. 8 hr
C.  hr
D.  hr

Mathematics

Solve the problem.The number of mobile phones sold in a given year is approximated by  where x represents the number of years since mobile phones became readily available. The corresponding polynomial for phones is   Find the polynomial that represents how many more mobile phones than phones were sold in a given year.

A. -3x4 - x3 - 5x + 9 B. 3x4 - x3 + 11x2 - 6x + 8 C. -3x4 + x3 + 10x2 + 6x - 8 D. -3x4 + x3 + 3x2 - 12x + 10

Mathematics