Solve the rational inequality. Write the solution set using interval notation; then graph the solution set on a number line. < x

A. (-?, 2) ? (7, ?)

B. (2, 7)

C. (7, ?)

D. (0, 2) ? (7, ?)


Answer: D

Mathematics

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Decide whether the relation is a function.{(-6, 9), (-3, 6), (2, -2), (5, -4)}

A. Not a function B. Function

Mathematics

Perform the indicated operations. Simplify when necessary.

A. - 
B. - 
C.
D. 0

Mathematics

Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.

A. {(9.2, 7.86)}
B. {(-9.2, 7.86)}
C. no solution; ?
D. infinitely many solutions; { y = 1.3x - 4.1} or { y = 0.7x + 1.42}

Mathematics

Find the exact value of the expression.cos3

A.
B.
C.
D.

Mathematics