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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. When the 'a' in the parabola is negative...






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






3. What is an isoceles triangle?






4. Legs: 3 - 4. Hypotenuse?






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






6. Is 0 even or odd?






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






8. If a=-1 and b=3 - what is the value of (4(a^3)(b^2) - 12(a^2)(b^5)) / (16(a^3)(b^2))?






9. sqrt 2(sqrt 6)=






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






11. Can the output value of a function have more than one input value?






12. Define a 'Term' -






13. a^2 + 2ab + b^2






14. Pi is a ratio of what to what?

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






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






17. 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)?






18. 70 < all primes< 80






19. (-1)^2 =






20. What are the rational numbers?






21. Evaluate (4^3)^2






22. Area of a triangle?






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






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






25. What is a tangent?






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






27. What percent of 40 is 22?






28. Can you add sqrt 3 and sqrt 5?






29. Can you simplify sqrt72?






30. Legs 5 - 12. Hypotenuse?






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






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






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






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






35. A company places a 6-symbol code on each product. The code consists of the letter T - followed by 3 numerical digits - and then 2 consonants (Y is a conson). How many codes are possible?






36. How to find the area of a sector?






37. Circumference of a circle?






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






39. Which quadrant is the upper left hand?






40. What is a piecewise equation?






41. Number of degrees in a triangle






42. a^2 - b^2






43. What is the formula for compounded interest?






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






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






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






47. Nine coins are tossed simultaneously. In how many of the outcomes will the fourth coin tossed show heads?






48. 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?






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






50. What is a major arc?

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