Use a combination of rules for exponents to simplify. Write answers with only positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. - 
B. - 
C. 
D. -5
Mathematics
For the pair of functions, find the indicated sum, difference, product, or quotient.f(x) = 5 - 5x, g(x) = -3x2 + 5Find (f + g)(x).
A. -8x2 - 5x + 10 B. -8x + 10 C. -3x2 + 5 D. -3x2 - 5x + 10
Mathematics
Find the vertices of the hyperbola.
- 
= 1
A. (-9, -2) and (1, -2) B. (4, 6) and (4, -2) C. (-1, 2) and (9, 2) D. (-4, 2) and (-4, -6)
Mathematics
Decide whether or not the ordered pair is a solution of the system.(1, -2)4x = 2 - y3x = -5 - 4y
A. Yes B. No
Mathematics