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In the real numbers, which of the following is the domain of the function ?

(A) x≥3

(B) x> 3

(C) x< –3

(D) –3 < x< 3

(E) x< –3 or x> 3

The Correct Answer
Explanation

Which of the following expressions is equivalent to the expression given below?

(2x3x - 1) - 3(x4 + 2x3 - 2x2x + 3)

(F) x14 - 3 (G) -3x14 (H) -3x4 + 8x3 - 6x2 - 4x + 8 (J) -3x4 + 4x3 - 2x2 - 2x - 3 (K) -3x4 - 4x3 + 6x2 + 2x - 10

Correct Answer: K

If x = 3, y = 5, and w = 4, what is the value of image ?

(A)9 (B) 12 (C) 79.5 (D) 153 (E) 1,689.00

Correct Answer: D

As shown in the (x,y,z) coordinate space below, the cube with vertices L through S has edges that are 2 coordinate units long. The coordinates of Q are (0,0,0), and S is on the positive x-axis. What are the coordinates of O?

(F) (2,0,2) (G) (2,2,2) (H) (J) (K)

Correct Answer: H

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