A piecewise function is given. Use the properties of limits to find the indicated limits, or state that the limit does not exist.f(x) = a. f(x)b. f(x)c. -21.0px;" />f(x)

A. a. 1
b. 1
c. does not exist
B. a. -3
b. 4
c. does not exist
C. a. 4
b. -3
c. does not exist
D. a. 1
b. 1
c. 1

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Answer: D

Mathematics

Write in exponent form.6 ? 6 ? 6 ? 6

A. 46 B. 64 C. 62 D. 24

Factor completely.a2 - 14ab + 49b2

A. (a + 14b)(a - 14b) B. (a + 7b)(a - 7b) C. (a - 7b)2 D. (a + 7b)2

Collect like terms.m - n + m - n

A. m + n
B. m - n - 
C. m - n
D. - m - n

Solve the rational inequality and graph the solution set on a real number line. Express the solution set in interval notation. > 0

A. (-4, 2)


B. (2, ?)


C. (-?, -4) or (2, ?)


D. (-?, -4)