Rewrite the expression without absolute value bars. 

A. -  - 9
B.  - 9
C. 9 + 
D. 9 - 

Answer: D

Mathematics

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Solve the problem.City residents were surveyed concerning their preferences for candidates Moore and Allen in an upcoming election. Of the 800 respondents, 300 support neither Moore nor Allen, 100 support both Moore and Allen, and 250 support only Moore. How many residents support Allen?

A. 250 B. 400 C. 150 D. 100

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Mathematics

Solve.Saji swims  mi every day. One day he had already swum  mi. How much further should he swim?

A.  mi
B.  mi
C.  mi
D.  mi

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Mathematics

The function f is one-to-one. Find its inverse.f(x) = x2 + 4, x ? 0

A. f-1(x) =  - 4, x ? 0
B. f-1(x) =  - 4, x < 0
C. f-1(x) = , x ? 4
D. f-1(x) = , x ? -4

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Mathematics

Write the power of i as i, -1, -i, or 1.i3

A. -i B. 1 C. -1 D. i

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Mathematics