1. Which statement illustrates the commutative property of addition? A. (5 + 3) + 6 = 14 B. (5 + 3) + 6 = 5 + (3 + 6) C. (5 + 3) + 6 = (3 + 5) + 6 D. (5 + 3) + 6 = 8 + 6 Hint 2. Evaluate if a = 6. A. 4 B. 12 C. 8 D. 24 Hint 3. If f(x) = 3x + 5, find f(2). A. 10 B. 2f C. 8 D. 11 Hint 4. Which system of inequalities is graphed below? A. B. C. D. Hint 5. The area of the rectangle shown below is 4x3y2, and its base b is 2x5y. Find the height, h. A. 8x8y3 B. 2x2y C. D. Hint 6. Evaluate . Express the result in scientific notation. A. 80 × 10-8 B. 8.0 × 10-7 C. 8.0 × 10-9 D. 0.8 × 10-8 Hint 7. Factor 10x2 + 24x + 8. A. 2(x + 2)(5x + 2) B. (x + 2)(5x + 2) C. 2(x + 4)(5x + 1) D. (2x + 4)(5x + 2) Hint 8. The equation x2 + 1 = -3x does not have integral roots. State the consecutive integers between which the roots lie. A. between 0 and 1 and between 2 and 3 B. between -1 and 0 and between 0 and 1 C. between -3 and -2 and between 0 and 1 D. between -3 and -2 and between -1 and 0 Hint 9. Use the quadratic formula to solve x2 + 4x + 5 = 0. A. -1, -4 B. -1 C. 5 D. Hint 10. State the excluded values of x in the expression . A. or 3 B. or - 3 C. , 3, or 4 D. Hint 11. Find . A. B. C. D. Hint 12. Which of the following side measures would form a right triangle? A. 8, 11, 19 B. 10, 24, 26 C. 18, 20, 27 D. 7, 9, 12 Hint 13. Translate the sentence into a formula. The area of a trapezoid is equal to one-half times the sum of the bases times the height. A. B. C. D. Hint 14. Find three consecutive even integers that have a sum that is zero. A. 2, 4, -6 B. -2, 0, 2 C. -4, 0, 4 D. -1, 0, 1 Hint 15. To conduct a survey about the people of Wisconsin, 100 people were chosen from each county based on a recent census. What kind of sample is this? A. biased, voluntary B. unbiased, stratified random sample C. unbiased, random sample D. biased, convenience Hint 16. Which table contains data whose distribution would be skewed right? A. B. C. D. Hint 17. The table shows the results of rolling a number cube over three separate experiments. What is the experimental probability of rolling a four? A. B. C. D. Hint 18. Solve . A. 445 B. 15 C. 25 D. 125 Hint 19. Determine the third side measure that will form a right triangle if two of the sides are 9 and 41. A. 40 B. 42 C. 27 D. does not exist Hint 20. What must be true about a division problem of a polynomial by a binomial in which there is a non-zero remainder? A. The polynomial has no factors. B. The polynomial is of degree greater than 2. C. The polynomial is of degree less than or equal to 2. D. The binomial is not a factor of the polynomial. Hint