Evaluate the logarithm log1/3 0.603 using the change of base formula. Round to 3 decimal places.
A. 2.172
B. 0.556
C. -0.506
D. -0.22
E. 0.46
Answer: E
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Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.a2 - 2a - 63
A. (a - 9)(a + 7) B. (a + 9)(a + 1) C. (a + 9)(a + 7) D. Prime
Use the graph of f to determine the intervals where f is increasing and where f is decreasing.
A. increasing: (-?, 0]; decreasing [0, ?) B. increasing: [0, ?); decreasing (-?, 0] C. increasing: (-?, ?); decreasing: never D. increasing: never; decreasing: (-?, ?)
Write the basic solution for the simplex tableau determined by setting the nonbasic variables equal to 0. 
A. x1 = 9, x2 = 0, x3 = 18, x4 = 15, x5 = 1, z = 12 B. x1 = 0, x2 = -3, x3 = 0, x4 = 0, x5 = 1, z = 1 C. x1 = 9, x2 = 0, x3 = 18, x4 = 15, x5 = 1, z = 0 D. x1 = 9, x2 = 0, x3 = 18, x4 = 15, x5 = 0, z = 12
Simplify. Remember that we have assumed that radicands do not represent the square of a negative number.
A. 4x2 B. 4x C. 16x2 D. 16x