Simplify the rational expression.

A. x - 6
B.
C.
D. x + 6


Answer: D

Mathematics

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Find the perimeter.

A. 57 yd B. 180.5 yd C. 38 yd D. 56 yd

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Use a truth table to determine whether the statement is a tautology, a self-contradiction, or neither.~p ? (~p ? ~q)

A. Self-contradiction B. Tautology C. Neither

Mathematics

Find the quotient. If the quotient is a repeating decimal, write the answer with a bar over the repeating digit or digits.2 ÷ 3.0

A. 0.66
B. 0.6
C. 0. 
D. 0.

Mathematics

Find the probability.The table lists the eight possible blood types. Also given is the percent of the U.S. population having that type.Let E be the event that a randomly selected person in the U. S. has type B blood. Let F be the event that a randomly selected person in the U. S. has RH-positive blood.Find P(F|E).

A. 0.818 B. 0.340 C. 0.720 D. 0.107

Mathematics