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What is the minimum value of 9 cos x?

(A)–9

(B)–2

(C)0

(D)2

(E)9

The Correct Answer
Explanation

What is the additive inverse of the polynomial 5x3 - 4x2 + 6x - 9?

(A)-5x3 + 4x2 - 6x - 9 (B) -5x3 + 4x2 - 6x + 9 (C) 5x3 - 4x2 + 6x - 9 (D) -9 + 6x - 4x2 + 5x3 (E) 9 - 6x - 4x2 + 5x3

Correct Answer: B

What is the least integer value of x that makes the inequality true?

(A)7 (B) 8 (C) 9 (D) 10 (E) 11

Correct Answer: C

If the function f(a, b) is defined as f(a,b) = 2ab - (a + b), then f(3,4) = ?

(A)7 (B) 17 (C) 21 (D) 24 (E) 31

Correct Answer: B

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