Express the set in simplest interval form.(-?, 3) ? (-7, ?)
A. (-?, -7]
B. [-7, 3)
C. (-?, ?)
D. (-7, 3)
Answer: D
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Solve the system using matrices.x - y+ 5z = 7x + 3y + z = 110.4x + 0.1z = 0.2
A. (0, 3, 2) B. No solution C. (2, 3, 0) D. (2, 0, 3)
Find the domain and the vertical asymptote of the function.f(x) = log(x - 6)
A. Domain (6, ?); vertical asymptote: x = 6 B. Domain (1, ?); vertical asymptote: x = 1 C. Domain : (-6, ?); vertical asymptote: x = -6 D. Domain (0, ?); vertical asymptote: x = 0
Perform the matrix multiplication. Find AB for A = 
and B = 
.
A. 
B. 
C. 
D. 
Identify the following as rational or irrational. If the number is rational, find the root exactly. If the number is irrational, approximate the number to the nearest thousandth when necessary.
A. Rational, 0.4 B. Irrational, 0.021 C. Rational, 0.021 D. Irrational, 0.4