Find the LCD. Do not combine fractions.
, 
A. 4(x + 1)(x - 2)
B. 4(x - 1)(x - 2)
C. 4(x + 1)(x + 2)
D. 4(x - 1)(x + 2)
Answer: B
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Find the probability. Round to the nearest ten-thousandth when necessary.A coin is biased to show 45% heads and 55% tails. The coin is tossed twice. What is the probability that the coin turns up heads once and tails once?
A. 0.45 B. 0.495 C. 0.55 D. 0.2475
Solve the problem.Construct a possibility tree that shows all possible outcomes when three coins are tossed.
A. 
B. 
C. 
D. 
Identify the vertex of the parabola.y = 2x2 - 20x + 51
A. (1, 5) B. (-5, -1) C. (-1, -5) D. (5, 1)
Find a polynomial function of lowest degree with rational coefficients that has the given numbers as some of its zeros.9i, 
A. f(x) = x4 + 156x2 + 243 B. f(x) = x4 - 78x2 - 243 C. f(x) = x4 - 156x2 + 243 D. f(x) = x4 + 78x2 - 243