math.30

# Q28 in the rectangular coordinate system points 4 0

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Q28: In the rectangular coordinate system, points (4, 0) and (– 4, 0) both lie on circle C . What is the maximum possible value of the radius of C ? A. 2 B. 4 C. 8 D. 16 E. There is no finite maximum value. Answer: ---------------------------------------------------------------------------------------------------------------------- Q29: 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?

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---------------------------------------------------------------------------------------------------------------------- Q30: A train traveled from station X to station Y at a constant speed of 88 feet per second. Is the distance that the train traveled from station X to Station Y greater than 40 miles? (1 mile = 5,280 feet) (1) It took less than 45 minutes for the train to travel from station X to Station Y. (2) It took more than 42 minutes for the train to travel from station X to Station Y. 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: ---------------------------------------------------------------------------------------------------------------------- Q31: There are 5 cars to be displayed in 5 parking spaces with all the cars facing the same direction. Of the 5 cars, 3 are red, 1 is blue, and 1 is yellow. If the cars are identical except for color, how many different display arrangements of the 5 cars are possible? ---------------------------------------------------------------------------------------------------------------------- Q32: If x is an integer, is 3 x + 7 even? (1) ( x – 5)( x + 1) = 0 (2) x is a factor of 105. ------------------------------------------------------------------------------------------------------------ Q33: (0.8) -5 / (0.4) -4 =
A. 3/32 B. 5/64 C. 1/2 D. 1 E. 2 ---------------------------------------------------------------------------------------------------------------------- Q34: A certain company that sells only cars and trucks reported that revenues from car sales in 1997 were down 11 percent from 1996 and revenues from truck sales in 1997 were up 7 percent from 1996. If total revenues from car sales and truck sales in 1997 were up 1 percent from 1996, what is the ratio of revenue from car sales in 1996 to revenue from truck sales in 1996? A. 1 : 2 B. 4 : 5 C. 1 : 1 D. 3 : 2 E. 5 : 3 Answer: ---------------------------------------------------------------------------------------------------------------------- Q35: What is the median number of employees assigned per project for the projects at Company Z? (1) 25 percent of the projects at Company Z have 4 or more employees assigned to each project. (2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project. ----------------------------------------------------------------------------------------------------------------------

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