Find the domain of the rational expression. 
A. {x|x is a real number and x ? 1 and x ? 7}
B. {x|x is a real number and x ? -1 and x ? -7}
C. {x|x is a real number and x ? 1 and x ? -7 and x ? 7}
D. {x|x is a real number and x ? -1 and x ? -7 and x ? 7}
Answer: D
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Solve the problem.The table shows the number of minority officers in the U.S. military. Army Navy Marines Air ForceAfrican Americans 9162 3524 1341 4282Hispanic Americans 2105 2732 914 1518Other Minorities 4075 2653 599 3823Assume that one person will be randomly selected from the group described in the table. Find the probability of selecting an officer who is in the Navy, given that the officer is African American.
A. 
B. 
C. 
D. 
Solve the problem.Find the missing length in the following right triangle. If necessary, round to the nearest tenth. 
A. 12 cm B. 14.5 cm C. 72.5 cm D. 145 cm
Provide an appropriate response.Perform the operation and simplify your answer: 
Fill in the blank(s) with the appropriate word(s).
Solve.
(2x - 6) - 
< 
A. x > 
B. x < 
C. x < 
D. x < 