MATH.12

Q15 if x 0 then x 1x 2 x 1x 2 a 1x b x c 1 d 2 e 4

This preview shows pages 5–9. Sign up to view the full content.

Q15: If x ≠ 0, then (x + 1/x) 2 - (x - 1/x) 2 = A. 1/x B. x C. 1 D. 2 E. 4 Answer: ---------------------------------------------------------------------------------------------------------------------- Q16: If m, p, and t are positive integers and m < p < t, is the product mpt an even integer? (1) t – p = p - m (2) t – m = 16 5

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
---------------------------------------------------------------------------------------------------------------------- Q17: If a certain coin is flipped, the probability that the coin will land heads is 1/2. If the coin is flipped 5 times, what is the probability that it will land heads up on the first 3 flips and not on the last 2 flips? ---------------------------------------------------------------------------------------------------------------------- Q18: The function f is defined by f(x) = √x – 10 for all positive numbers x. If u = f(t) for some positive numbers t and u. What is t in terms of u? A. √(u+10) B. (√u + 10) 2 C. √(u 2 +10) D. (u + 10) 2 E. (u 2 + 10) 2 Answer: ---------------------------------------------------------------------------------------------------------------------- Q19: y l 2 -3 0 x The graph of which of the following equations is a straight line that is parallel to line l in the figure above? 6
---------------------------------------------------------------------------------------------------------------------- Q20: What is the total number of executives at Company P? (1) The number of male executives is 3/5 the number of female executives. (2) There are 4 more female executives than male executives. A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. D. EACH statement ALONE is sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient. Answer: ---------------------------------------------------------------------------------------------------------------------- Q21: The ratio of the number of boys to the number of girls in a certain school club is 3 : 4. If there are 5 more girls than boys in the club, how many girls are in the club? ---------------------------------------------------------------------------------------------------------------------- Q22: B A 7

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
What is the volume of the cube above? (1) The surface area of the cube is 600 square inches. (2) The length of diagonal AB is 10√3 inches. ----------------------------------------------------------------------------------------------------------------------
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern