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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 name of set with a number of elements which cannot be counted?






2. Area of a triangle?






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






4. What is a tangent?






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






6. Define a 'monomial'






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






8. Suppose you have a set of n objects - and you want to select k of them - but the order doesn'T matter. What formula do you use to determine the number of combinations of n objects taken k at a time?






9. Which quadrant is the upper left hand?






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






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






12. 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?






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






14. How many multiples does a given number have?






15. What is the formula for compounded interest?






16. Which quandrant is the lower right hand?






17. What are the rational numbers?






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






19. 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?






20. Can you simplify sqrt72?






21. Which quadrant is the upper right hand?






22. Evaluate 4/11 + 11/12






23. The number of degrees in the largest angle of a triangle inscribed in a circle - in which the diameter of the circle is one side of the triangle.






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






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






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






27. 0^0






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






29. What is a chord of a circle?






30. The slope of a line perpendicular to (a/b)?






31. (12sqrt15) / (2sqrt5) =






32. 5/8 in percent?






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






34. Convert 0.7% to a fraction.






35. a^2 - b^2






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






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






38. Formula for the area of a sector of a circle?






39. What is a major arc?

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40. Number of degrees in a triangle






41. What number between 70 & 75 - inclusive - has the greatest number of factors?






42. (6sqrt3) x (2sqrt5) =






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






44. 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?






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






46. Legs: 3 - 4. Hypotenuse?






47. Define an 'expression'.






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






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






50. Write 10 -843 X 10^7 in scientific notation







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