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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. Formula to calculate arc length?






2. 5/6 in percent?






3. From a box of 12 candles - you are to remove 5. How many different sets of 5 candles could you remove?






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






5. 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?






6. What is the formula for compounded interest?






7. Can the input value of a function have more than one output value (i.e. x: y - y1)?






8. Formula for the area of a circle?






9. sqrt 2(sqrt 6)=






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






11. Describe the relationship between 3x^2 and 3(x - 1)^2






12. (x^2)^4






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






14. When does a function automatically have a restricted domain (2)?






15. What is a subset?






16. What is the slope of a horizontal line?






17. The perimeter of a square is 48 inches. The length of its diagonal is:






18. x^4 + x^7 =






19. What is an isoceles triangle?






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






21. (12sqrt15) / (2sqrt5) =






22. If the two sides of a triangle are unequal then the longer side...






23. If 4500 is invested at a simple interest rate of 6% - what is the value of the investment after 10 months?






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






25. What are the roots of the quadrinomial x^2 + 2x + 1?






26. What are the irrational numbers?

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27. Define a 'Term' -






28. What is the percent formula?






29. What are the rational numbers?






30. A number is divisible by 4 is...






31. What is the empty set?






32. Can you simplify sqrt72?






33. T or F? Given d -e &f =/ 0 - [(d^3)e(f^5)] / 2d(e^3) / [3(d^2)(e^3)(f^7)] / [6(e^5)(f^2)]?






34. Surface area for a cylinder?






35. If an inequality is multiplied or divided by a negative number....






36. What does the graph (x+2)^2 + (y+2)^2 = 9 look like?






37. What is a tangent?






38. How many digits are there between the decimal point and the first even digit in the decimal equivalent of 1/[(2^8)(5^3)]






39. P and r are factors of 100. What is greater - pr or 100?






40. What is the measure of an exterior angle of a regular pentagon?






41. a^2 + 2ab + b^2






42. What is the sum of the angles of a triangle?






43. What is a minor arc?

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44. 1:sqrt3:2 is the ratio of the sides of what kind of triangle?






45. What is an exterior angle?






46. Factor x^2 - xy + x.






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






48. What is the 'Range' of a series of numbers?






49. What are congruent triangles?






50. If r - t - s & u are distinct - consecutive prime numbers - less than 31 - which of the following could be an average of them (4 - 4.25 - 6 - 9 - 24 - 22 - 24)