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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. Describe the relationship between 3x^2 and 3(x - 1)^2






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






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






4. What is the name for a grouping of the members within a set based on a shared characteristic?






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






6. What percent of 40 is 22?






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






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






9. T or F? Given d -e &f =/ 0 - [(d^3)e(f^5)] / 2d(e^3) / [3(d^2)(e^3)(f^7)] / [6(e^5)(f^2)]?






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






11. 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?






12. If 8 schools are in a conference - how many games are played if each team plays each other exactly once?






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






14. Can you simplify sqrt72?






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






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






17. Legs 5 - 12. Hypotenuse?






18. Evaluate (4^3)^2






19. 200 <_ x <_ 300. How many values of x are divisible by 5 & 8?






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






21. 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?






22. Define an 'expression'.






23. Which quadrant is the lower left hand?






24. 1:sqrt3:2 is the ratio of the sides of what kind of triangle?






25. Convert 0.7% to a fraction.






26. How many multiples does a given number have?






27. What is the percent formula?






28. Can the input value of a function have more than one output value (i.e. x: y - y1)?






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






30. What is an isoceles triangle?






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






32. Area of a triangle?






33. 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?






34. What is a piecewise equation?






35. How to find the area of a sector?






36. The ratio of the areas of two similar polygons is ...






37. 30< all primes<40






38. What is a central angle?






39. 6w^2 - w - 15 = 0






40. When the 'a' in a parabola is positive....






41. Volume for a cylinder?






42. If 4500 is invested at a simple interest rate of 6% - what is the value of the investment after 10 months?






43. 1/6 in percent?






44. What are 'Supplementary angles?'






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






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






47. (6sqrt3) x (2sqrt5) =






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






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






50. Simplify (a^2 + b)^2 - (a^2 - b)^2