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Math Questions and Solutions

Solve math equations, evaluate expressions, and find solutions for various mathematical problems.

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Math Questions and Solutions

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  1. If a=17, evaluate 56+a-16. • A. 23 • B. 55 • C. 57 • D. 89

  2. CORRECT ANSWER C. 57

  3. Solve the following equation and choose the correct solution for n. 4n-16=20 • A. 1 • B. 4 • C. 5 • D. 9

  4. CORRECT ANSWER D. 9

  5. What is 90 in simplest form? • A. 9 10 • B. 4 45 • C. 6 5 • D. 3 10

  6. CORRECT ANSWER D. 3 10

  7. If Shane rolls a number cube with faces numbered 1 through 6 and flips a quarter, what is the probability that the number cube will show a number less than 4 and the quarter will come up tails? • A. ¼ • B. 1/3 • C. ½ • D. 2/3

  8. CORRECT ANSWER • 1 4

  9. Which inequality has the solution showed on this number line? -4 -3 -2 -1 0 1 2 3 4 A. 3n + 4 < 16 B. 3n – 4 < 11 C. 4n – 2 < 10 D. 4n + 2 < 10

  10. CORRECT ANSWER C. 4n – 2 < 10

  11. If x represents the positions of terms in this sequence( 1, 2, 3, 4…) and y represents the terms, which equation shows the relationship of y to x? (5, 9, 13, 17, 21…) • A. y = x + 4 • B. y = 3x + 2 • C. y = 4x - 1 • D. y = 4x + 1

  12. CORRECT ANSWER D. y = 4x + 1

  13. What is the solution of this system of equations? 3x + y = 5 Y = x - 7 • A.(3, 4) • B.(3, - 4) • C.(- 3, 4) • D.(- 3, - 4)

  14. CORRECT ANSWER B.(3, - 4)

  15. Which number is irrational? • A. 121 • B. -8.3 • C. -29/30 • D. 60

  16. CORRECT ANSWER D. 60

  17. Lines OP ,QR, and ST are parallel. What is the length of OS? A. 12 cm C. 27 cm B. 24 cm D. 30 cm O P 8 cm Q R 15 cm 10 cm T S

  18. CORRECT ANSWER C. 27 cm

  19. What is the complement of Set A in this diagram? U A B 2 4 8 6 10 14 16 12 18 20 A. {2, 6, 10, 12, 18, 20} B. {6, 12, 20} C. {6, 8, 12, 16, 20} D. {2, 6, 8, 10, 12, 16, 18, 20}

  20. CORRECT ANSWER A. {2, 6, 10, 12, 18, 20}

  21. Which of the following relations is NOT a function? • A. (1,4), (3,6), (5,8), (7,10) • B. (-7,49), (7,49), (-8,64), (8,64) • C. (-12,12), (-6,6), (-6,0), (-12,-6) • D. (3,18), (4,24), (5,30), (6,36)

  22. CORRECT ANSWER C. (-12,12), (-6,6), (-6,0), (-12,-6)

  23. Simplify 3 15 45 • A. 5 • B. 3 • C. 1 • D. 1/3

  24. CORRECT ANSWER B. 3

  25. When planet Venus is farthest from Earth, it is 162,200,000 miles away. What is 162,200,000 in scientific notation? A. 1.622 x 10-8 B. 1.622 x 105 C. 1.622 x 106 D. 1.622 x 108

  26. CORRECT ANSWER D. 1.622 x 108

  27. A rectangular park is 60 yards long and 45 yards wide. What is the length of a straight path that runs along the diagonal of the park? • A. 75yd • B. 85yd • C. 95yd • D. 105yd

  28. CORRECT ANSWER A. 75yd

  29. Find the sum. 8 3+ 5 3 • A. 39 • B. 13 3 • C. 13 6 • D. 39

  30. CORRECT ANSWER B. 13 3

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