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






2. What is the slope of a horizontal line?






3. 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






4. (a^-1)/a^5






5. What is the common monomial factor in the expression 4(c^3)d - (c^2)(d^2) + 2cd?






6. 3/8 in percent?






7. Suppose that the graph of f(x) is the result of stretching y=x + 5 away from the x-axis by a factor of 2. What is the new equation for the graph f(x)?






8. Which quadrant is the upper left hand?






9. Convert 0.7% to a fraction.






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






11. Which is greater? 27^(-4) or 9^(-8)






12. Which is greater? 64^5 or 16^8






13. a^2 - b^2 =






14. What are the real numbers?






15. (-1)^2 =






16. Simplify (a^2 + b)^2 - (a^2 - b)^2






17. Which quadrant is the lower left hand?






18. 5 bakeries sell an average of 300 muffins per bakery per day. If 2 stop making muffins but the total muffins sold stays the same - what is the average of muffins per bakery sold among the remaining?






19. Surface area for a cylinder?






20. Number of degrees in a triangle






21. 60 < all primes <70






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






23. What does scientific notation mean?






24. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. In how many ways can the judges award the 3 prizes?






25. Simplify the expression [(b^2 - c^2) / (b - c)]






26. (x^2)^4






27. What is the ratio of the surface area of a cube with an edge of 10 to the surface area of a rectangular solid with dimensions 2 - 4 - and 6?






28. What is the set of elements which can be found in either A or B?






29. What are 'Supplementary angles?'






30. What is the empty set?






31. In similar hexagons - the ratio of the areas is 16:25. What is the ratio of their corresponding sides?






32. 6w^2 - w - 15 = 0






33. What is an exterior angle?






34. A number is divisible by 4 is...






35. The four angles around a point measure y - 2y - 35 and 55 respectively. What is the value of y?






36. Formula to find a circle'S circumference from its radius?






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






38. What is a chord of a circle?






39. Legs: 3 - 4. Hypotenuse?






40. For similar triangles - the ratio of their corresponding sides is 2:3. What is the ratio of their areas?






41. a^0 =






42. A triangle is inscribed in a semi circle with legs 5 and 12. What is the circumfermence of the semicircle?






43. Circumference of a circle?






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






45. A cylinder has a surface area of 22pi. If the cylinder has a height of 10 - what is the radius?






46. Reduce: 4.8 : 0.8 : 1.6






47. Evaluate 4/11 + 11/12






48. What transformation occurs if point C is reflected over the x-axis and then the y-axis?






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






50. What are congruent triangles?