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Which of the following is a possible solution for x in terms of k for the equation ?






The Correct Answer

To make space for new merchandise, a clothing store offered a 15% discount on all current stock.What is the sale price of a jacket that regularly sells for $42?

(A)$6.30 (B) $8.40 (C) $35.70 (D) $37.80 (E) $41.85

Correct Answer: C

The coordinates of the vertices of MON are shown in the standard (x,y) coordinate plane below. Rectangle MPQR is shown shaded. Point P lies on , point Q lies on , and point R lies on .

What is the value of cos (MON)?

(A) (B) (C) 2 (D) (E)

Correct Answer: B

Which of the following trigonometric functions has an amplitude of 3?

(Note: the amplitude of a trigonometric function is the nonnegative difference between the maximum and minimum values of the function.)

(F) f(x) = sin x (G) f(x) = cos 3x (H) f(x) = sin(x) (J) f(x) = 3 tan x (K) f(x) = 3 cos x

Correct Answer: K

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