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






2. What is a chord of a circle?






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






4. Formula to calculate arc length?






5. 7/8 in percent?






6. How to find the area of a sector?






7. The objects in a set are called two names:






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






9. 10<all primes<20






10. 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?






11. Which is greater? 200x^295 or 10x^294?






12. From a box of 12 candles - you are to remove 5. How many different sets of 5 candles could you remove?






13. How many sides does a hexagon have?






14. 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))?






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






16. What is a major arc?

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17. Describe the relationship between the graphs of x^2 and (1/2)x^2






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






19. What is a subset?






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






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






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






23. What is the third quartile of the following data set: 44 - 58 - 63 - 63 - 68 - 70 - 82






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






26. (-1)^2 =






27. Pi is a ratio of what to what?

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






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






30. What is a minor arc?

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31. How to find the diagonal of a rectangular solid?






32. Which quadrant is the lower left hand?






33. How many multiples does a given number have?






34. Define an 'expression'.






35. 4.809 X 10^7 =






36. What is an exterior angle?






37. 20<all primes<30






38. 10^6 has how many zeroes?






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






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






41. What is an arc of a circle?






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






43. Reduce: 4.8 : 0.8 : 1.6






44. What are congruent triangles?






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






46. What is a piecewise equation?






47. A brick with dimensions 10. 15 and 25 weighs 1.5 kg. A second brick (same density) has dimensions 12 - 18 - and 30. What is the weight of the second brick?






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






49. Length of an arc of a circle?






50. What is the 'Solution' for a set of inequalities.