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What is the value of x5 for x = –3

(A) –243

(B) 243

(C) –43

(D) 43

(E) 13

The Correct Answer
Explanation

How many different positive integers are factors of both 28 and 42?

(A) 1(B) 2(C) 3(D) 4(E) More than 4

Correct Answer: D

At 3 p.m., the afternoon sun shines over a building and its rays hit the ground at a 34° angle. The building is 100 meters tall and is perpendicular to the ground. How long, to the nearest meter, is the building's shadow that is cast by the sun? (Note: sin 34° ≈ 0.56, cos 34° ≈ 0.83, tan 34° ≈ 0.67)

(A)56 (B) 67 (C) 83 (D) 120 (E) 148

Correct Answer: E

A right triangle has sides measuring 12 inches, 35 inches, and 37 inches. What is the cosine of the angle that lies opposite the 35-inch side?

(F) (G) (H) (J) (K)

Correct Answer: J

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