Find the domain of the rational function.f(x) = 
A. {x|x ? 0, x ? 25}
B. {x|x ? -5, x ? 5}
C. all real numbers
D. {x|x ? -5, x ? 5, x ? -4}
Answer: B
Mathematics
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Solve.For the following whole number, write the number as a product of its prime factors. 126 =
A. 22 ? 3 ? 7 B. 23 ? 33 ? 7 C. 2 ? 6 ? 7 D. 2 ? 32 ? 7
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Find the requested value.Find tan ? if sin ? = - 
and cos ? = - 
.
A. - 
B. 
C. - 
D. 
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Determine the number and type of solutions.x2 - 8x + 7 = 0
A. 1 real solution B. 2 real solutions C. 2 imaginary solutions
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Provide an appropriate response.Decide if the system has one solution, no solution, or an infinite number of solutions. 5x - y = 28 x + 2y = 10
A. One Solution B. Infinite number of solutions C. No Solution
Mathematics