Decide whether or not the ordered pair is a solution of the system.(2, -4)x + y = -6x - y = 2
A. Yes
B. No
Answer: B
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For the functions f(x) and g(x), determine the domain of (f - g)(x) (the difference of f and g).f(x) = 3x + 
, g(x) = 1 - x2
A. {x ? x is a real number and x ? 1} B. {x ? x is a real number} C. {x ? x is a real number and x ? -6} D. {x ? x is a real number and x ? 6}
Write the binomial expansion of the expression.(4x - 1)5
A. (16x2 - 8x + 1)5 B. 1024x5 + 20x4 - 160x3 - 160x2 + 20x - 1 C. 1024x5 - 1280x4 + 640x3 - 160x2 + 20x - 1 D. 1024x5 - 256x4 + 64x3 - 16x2 + 4x - 1
Use the change of base formula and a calculator to evaluate the logarithm. Round your answer to two decimal places.log2/319
A. 8.92 B. -14.52 C. -7.26 D. 7.26
Solve. Graph the solution on a number line, and express it in interval notation.4x + 2 ? 3x + 11
A. x ? 9, (-?, 9]
B. x ? 9, [9, ?)
C. x < 4, (-?, 4)
D. x > 4, (4, ?)