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ACC Module #2 Quiz #2 - Key

ACC Module #2 Quiz #2 - Key

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ACC Module #2 Quiz #2 - Key

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  1. ACCUPLACER Module #2 - QAS Quiz #2 Key 1

  2. Module #2 Quiz #2 1. A: The correct solution is -7. 3x + 12 - 1 = 2x + 6 - 2 3x + 11 = 2x + 4 x + 11 = 4 x = -7 2. C: The correct solution is 5 NAME: ____KEY__________________ Apply the distributive property. Combine like terms on both sides of the equation. Subtract 2x from both sides of the equation. Subtract 11 from both sides of the equations. . 4 4x = 5 x = 5 Subtract 3 from both sides of the equation. 4 Divide both sides of the equation by 4. 3. A: The correct graph has the two lines intersect at (1, 1). 4. B: The correct solution is (10, 7). -2x - 4y = - 48 -y = -49 y = 7 x + 2(7) = 24 x + 14 = 24 x = 10 5. A: The correct solution is A because the points for each city are graphed correctly. 6. C: The correct solution is that 60 percent of the students like pandas and monkeys: 33.33% plus 26.67% equals 60%. 7. A: The correct solution is x3 +x2 +x -3. (x-1)(x2 +2x + 3) = (x-1)(x2) + (x-1)(2x) + (x-1)(3) = x3 - x2 +2x2 -2x = 3x - 3 = x3+x2+x-3 Multiply all terms in the second equation by -2. Add the equations. Divide both sides of the equation by -7. Substitute 7 in the second equation for y. Simplify using order of operations. Subtract 14 from both sides of the equation/ 2

  3. 8. B: The correct solution is 3x3 - 9x2 -2x + 6. (3x2 -2)(x - 3) = 3X2(x - 3) - 2(x - 3) = 3x3 - 9x2 -2x + 6 9. C: The correct solution is 500 because 1 x 10-6 is 0.000001 and 2 x 10-9 is 0.000000000. So the lysosome is 500 times longer. 10. B: The correct solution is 7 because the cube root of 343 is 7. 11. B: The correct solution is simulating 1,000 students in the school because this would provide more accurate results representing students' intentions. 12. A: The correct solution is all eligible voters in the town because this is the population for the entire survey. 13. C: The correct solution is $150. The expected value is 0.0015($499,400 + 0.9985(-$600) = $749.1 +(-$599.1) = $150. 14. A: The correct solution is cards 17 and 19. Odd number cards are 1, 3, 5, 7, 9, 11, 13, 15, 17, and 19. Blue cards are 16, 17, 18, 19, and 20. Cards 17 and 19 are the only two cards that are both blue and odd numbers. 3

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