1. A. B. C. D. Hint 2. Ten test scores from Mrs. McDaniel's mathematics class are 100, 95, 93, 86, 82, 80, 78, 77, 75, and 75. She calculates the mean, median, and mode of the scores. An eleventh student takes the test with a score of 62. Mrs. McDaniel recalculates the mean, median, and mode of the test scores. Which measure changes the most when the eleventh score is included? A. mode B. mean C. The mean, median, and mode change equally. D. median Hint 3. Solve the equation 14 = 7 + x. A. -7 B. 7 C. -21 D. 2 Hint 4. The product of two rational numbers with different signs is ______. A. always positive B. always negative C. negative or positive depending upon the rational numbers that are factors D. always -1 Hint 5. How many of the outcomes when tossing a coin three times include at least one tail? A. 6 B. 8 C. 7 D. 5 Hint 6. Which mathematical statement is not an example of the Division Property of Equality? A. B. C. D. Hint 7. Solve the equation = 10x + 2. A. B. C. D. Hint 8. Solve the proportion = A. -18 B. C. 4.5 D. Hint 9. On a map, 1 inch represents 75 miles. If the distance on the map between two towns is 2 inches, what is the actual distance between the two towns? A. 50 miles B. 37.5 miles C. 75 miles D. 150 miles Hint 10. Which proportion correctly states the percent proportion where P is the percentage, B is the base and r is the percent? A. = B. = C. = D. = Hint 11. The relation {(4, 6), (6, 1), (10, 2), (5, -1), (10, -2), (2, 6)} is _______. A. a function, because each element of the domain is paired with exactly one element of the range B. not a function, because the range value 6 is paired with more than one element of the domain C. a function, because all of the elements of the domain are positive D. not a function, because the domain value 10 is paired with more than one element of the range Hint 12. Which equation is a direct variation? A. x + y = 1 B. y = -5x C. y = x - 2 D. y = 3 + 8x Hint 13. In the formula d = rt, the time t varies inversely as the rate r. A racing motorcycle traveling at 96 miles per hour completed one lap around a track in 1.5 minutes. How fast was the motorcycle traveling if it completed the next lap in 1.2 minutes? A. 76 mph B. 171.5 mph C. 120 mph D. 168.5 mph Hint 14. Simplify the expression . A. 21 B. 61 C. 17 D. 19 Hint 15. Simplify . A. B. C. D. Hint 16. The measure of the volume of a rectangular prism is 12x3 + 22x2 – 20x. What are possible dimensions of the prism? A. 2x, 6x + 2, x – 5 B. 2x, 2x – 5, 3x + 2 C. 2x, 2x + 5, 3x – 2 D. 2x, x + 5, 6x – 2 Hint 17. Which trinomial is not a perfect square? A. x2 + 4x + 4 B. x2 + 14x + 49 C. x2 + 9x + 18 D. x2 + 2x + 1 Hint 18. The graph shows the distribution of eye color at Moby High School. If you randomly meet a student from the school, what is the probability of he or she having blue or green eyes, to the nearest percent? A. 14% B. 65% C. 30% D. 9% Hint 19. Find the measure of the third side of the triangle if the measure of the perimeter is 11j + 2k meters. A. 4j – 2k meters B. 8j – 3k meters C. 19j + 3k meters D. 3j + k meters Hint 20. The graph of y = -x2 – 2x – 4 has its vertex at (-1, -3). The parabola is shifted so that the new vertex is at (2, 8). What is an equation for this new parabola? A. y = -(x – 1) 2 – 5 B. y = -(x – 2) 2 + 8 C. y = -(x + 2) 2 – 8 D. y = -(x + 1) 2 – 5 Hint