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GRE Math: Common Errors

Subjects : gre, math
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A number is divisible by 4 is...






2. Legs: 3 - 4. Hypotenuse?






3. Can the output value of a function have more than one input value?






4. Formula of rectangle where l increases by 20% and w decreases by 20%






5. 1:1:sqrt2 is the ratio of the sides of what kind of triangle?






6. How many 3-digit positive integers are even and do not contain the digit 4?






7. What is the formula for computing simple interest?






8. If the 80th percentile of the measurements is 72degrees - about how many measurments are between 69 degrees and 72 degrees? Round your answer to the nearest tenth






9. When the 'a' in a parabola is positive....






10. Employee X is paid 19.50 per hour no matter how many a week. Employee Y earns 18 for the first 40 and 1.5 the hourly wage for every hour after that. If both earned the same amount and worked the same in one week - how many did each work?






11. What is the graph of f(x) shifted downward c units or spaces?






12. What is a minor arc?

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13. Simplify 4sqrt21 X 5sqrt2 / 10sqrt7






14. What are the integers?






15. Which quadrant is the lower left hand?






16. What is the 'union' of A and B?






17. What does the graph x^2 + y^2 = 64 look like?






18. a^2 - b^2 =






19. 5/6 in percent?






20. Which is greater? 200x^295 or 10x^294?






21. In a regular polygon with n sides - the formula for the sum of interior angles






22. What is the graph of f(x) shifted left c units or spaces?






23. Can you simplify sqrt72?






24. What is the 'Restricted domain of a function'?






25. x^2 = 9. What is the value of x?






26. 5x^2 - 35x -55 = 0






27. What is the set of elements found in both A and B?






28. What is the maximum value for the function g(x) = (-2x^2) -1?






29. What is the third quartile of the following data set: 44 - 58 - 63 - 63 - 68 - 70 - 82






30. A number is divisible by 3 if ...






31. Define a 'monomial'






32. What are the irrational numbers?

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33. Area of a triangle?






34. What is a central angle?






35. What is the 'Solution' for a system of linear equations?






36. Max and Min lengths for a side of a triangle?






37. Evaluate and write as a mixed number: 2/7 - 3/21 + 2 & 4/14






38. What is a set with no members called?






39. What does scientific notation mean?






40. What is a subset?






41. Define an 'expression'.






42. 30< all primes<40






43. What are congruent triangles?






44. Circumference of a circle?






45. What is the 'Solution' for a set of inequalities.






46. Ratio of ages of Anna and Emma is 3:5 and of Emma and Nicolas is 3:5. What is the ratio of Anna to Nicholas' ages?






47. To multiply a number by 10^x






48. x^(-y)=






49. Suppose that the graph of f(x) is the result of sliding the graph of y=2x^2 down 3 units of spaces. What is the new equation?






50. If a=-1 and b=3 - what is the value of (4(a^3)(b^2) - 12(a^2)(b^5)) / (16(a^3)(b^2))?







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