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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 slope of a vertical line?

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2. x^4 + x^7 =






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






4. In a triangle where the two legs are 4 and 3 - what is the value of a line directly intersecting the middle coming from the meeting point of the two legs?






5. Define a 'monomial'






6. sqrt 2(sqrt 6)=






7. 1/8 in percent?






8. For what values should the domain be restricted for the function f(x) = sqrt(x + 8)






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






10. What is a minor arc?

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11. What is the ratio of the sides of an isosceles right triangle?






12. What is it called when a point is reflected to the quadrant opposite it (i.e. I to III or II to IV)?






13. (-1)^3 =






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






15. What is a finite set?






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






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






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






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






20. Factor a^2 + 2ab + b^2






21. 8.84 / 5.2






22. Solve the quadratic equation ax^2 + bx + c= 0






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






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






25. In a triangle inscribed inside a circle - where the diameter is one side of the triangle - which angle is largest?






26. What is a set with no members called?






27. What is a tangent?






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






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






30. Can you simplify sqrt72?






31. A number is divisible by 9 if...






32. What is a major arc?

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33. What is the empty set?






34. What is the ratio of the sides of a 30-60-90 triangle?






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






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






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






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






39. What is a chord of a circle?






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






41. What is a subset?






42. 1:sqrt3:2 is the ratio of the sides of what kind of triangle?






43. What is the intersection of A and B?






44. Area of a triangle?






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






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






47. Reduce: 4.8 : 0.8 : 1.6






48. What are the irrational numbers?

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49. What are the integers?






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