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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 graph of f(x) shifted left c units or spaces?






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






3. What is the name of set with a number of elements which cannot be counted?






4. Is 0 even or odd?






5. 4.809 X 10^7 =






6. x^6 / x^3






7. What is the side length of an equilateral triangle with altitude 6?






8. What are the irrational numbers?

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9. A number is divisible by 6 if...






10. What is a finite set?






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






12. What is a tangent?






13. Volume for a cylinder?






14. What is the surface area of a cylinder with radius 5 and height 8?






15. What is the 'Range' of a function?






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






17. Can you subtract 3sqrt4 from sqrt4?






18. (-1)^3 =






19. If 10800 is invested at a simple interest rate of 4% - what is the value of the investment after 18 months?






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






21. How to determine percent decrease?






22. Reduce: 4.8 : 0.8 : 1.6






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






24. 6w^2 - w - 15 = 0






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






26. What are the members or elements of a set?






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






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






29. Evaluate (4^3)^2






30. 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






31. 70 < all primes< 80






32. 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?






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






34. What is the coefficient of the x^2 term in the product of (x + 1)(x + 2)(x -1)?






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






36. Factor x^2 - xy + x.






37. x^(-y)=






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






39. Find the surface area of a cylinder with radius 3 and height 12.






40. 1/2 divided by 3/7 is the same as






41. What is a piecewise equation?






42. 40 < all primes<50






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






44. What does scientific notation mean?






45. How many sides does a hexagon have?






46. What is the area of a regular hexagon with side 6?






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






48. a^2 - b^2






49. Legs 5 - 12. Hypotenuse?






50. 5/6 in percent?