Simplify the complex rational expression.
A. x - 8
B. x + 8
C. 
D. 
Answer: C
Mathematics
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A leprechaun places a magic penny under a? girl's pillow. The next night there are 2 magic pennies under her pillow. Each night the number of magic pennies doubles. How much money will the girl have after 19 ?nights?
Mathematics
Find the exact value of the following expression without using a calculator.cot 
A. 
B. 
C. 1
D. 
Mathematics
Write the equation as f(x) = a(x - h)2 + k. Identify the vertex.f(x) = x2 + 5x + 2
A. f(x) = 
2 - 
; 
B. f(x) = (x + 5)2 - 23; (-5, 23)
C. f(x) = 
2 - 
; 
D. f(x) = (x + 5)2 - 23; (5, 23)
Mathematics
Solve the absolute value inequality. Other than ?, use interval notation to express the solution set and graph the solution set on a number line.|x - 1| < 3
A. ?
B. (-?, -2) ? (4, ?)
C. [-2, 4]
D. (-2, 4)
Mathematics