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The Correct Answer

Which of the following is (are) equivalent to the mathematical operation a(b - c) for all real numbers a, b, and c? I. ca - ba II. ab - ac III. (b - c)a

(A)II only (B) I and II only (C) I and III only (D) II and III only (E) I, II and III

Correct Answer: D

Ann is wrapping a gift for her friend's shower. She wants to cut ribbon so that she can place it on the gift like the picture below. What is the minimum length of the ribbon, in centimeters, that Ann would need to cut in order to wrap the box, assuming no overlap? image

(A)52 (B) 104 (C) 120 (D) 128 (E) 3,072

Correct Answer: C

What is the volume, in cubic centimeters, of a cone with a height of 9 centimeters and a base with a radius of 4 centimeters? (The volume of a cone is image, where R is the radius of the base of the cone and h is the height of the cone.)

(A)144π (B) 72π (C) 48π (D) 16π (E) 9π

Correct Answer: C

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