First, write the value(s) that make the denominator(s) zero. Then solve the equation.
= 
+ 60
A. x ? 0, 2; 
B. No restrictions; {4}
C. x ? 0; {8}
D. x ? 0; 
Answer: D
Mathematics
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Find all x-intercepts.f(x) = x2 + 5x - 84
A. (-12, 0), (7, 0) B. (12, 0), (7, 0) C. (-12, 0), (-7, 0) D. (12, 0), (-7, 0)
Mathematics
Solve the problem.The revenue achieved by selling x graphing calculators is figured to be 
dollars. The cost of each calculator is 
How many graphing calculators must be sold to make a profit (revenue - cost) of at least $387.50?
A. {x ? 26 < x < 30} B. {x ? 27 < x < 29} C. {x ? 32 < x < 38} D. {x ? 25 < x < 31}
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Perform the indicated operation and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Which of the following is not equivalent to?: 4x = 12
A. ?x = 3 B. ?8x = 24 C. ?–2x = –6 D. ?x + 4 = 8 E. ?x + 4 = 7
Mathematics