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






2. a^2 - b^2 =






3. What is an exterior angle?






4. Evaluate (4^3)^2






5. What is a set with no members called?






6. Convert 0.7% to a fraction.






7. What is a central angle?






8. Legs 5 - 12. Hypotenuse?






9. Simplify 9^(1/2) X 4^3 X 2^(-6)?






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






11. 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?






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






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






14. 25^(1/2) or sqrt. 25 =






15. What is the measure of an exterior angle of a regular pentagon?






16. 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)]?






17. The four angles around a point measure y - 2y - 35 and 55 respectively. What is the value of y?






18. 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.






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






20. 5/8 in percent?






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






22. What are the integers?






23. x^2 = 9. What is the value of x?






24. Suppose that the graph of f(x) is the result of sliding the graph of y=2x^2 down 3 units of spaces. What is the new equation?






25. What are the irrational numbers?

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






27. 5/6 in percent?






28. 70 < all primes< 80






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






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






31. Number of degrees in a triangle






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






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






34. What is a piecewise equation?






35. 1/2 divided by 3/7 is the same as






36. 10^6 has how many zeroes?






37. 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?






38. 4.809 X 10^7 =






39. P and r are factors of 100. What is greater - pr or 100?






40. 5 bakeries sell an average of 300 muffins per bakery per day. If 2 stop making muffins but the total muffins sold stays the same - what is the average of muffins per bakery sold among the remaining?






41. Hector invested $6000. Part was invested in account with 9% simple annual interest - and the rest in account with 7% simple annual interest. If he earned $490 in the first year of these investments - how much did he invest in each account?






42. What is the slope of a horizontal line?






43. 1:1:sqrt2 is the ratio of the sides of what kind of triangle?






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






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






46. How to find the circumference of a circle which circumscribes a square?






47. What is a minor arc?

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48. 200 <_ x <_ 300. How many values of x are divisible by 5 & 8?






49. Simplify the expression (p^2 - q^2)/ -5(q - p)






50. (12sqrt15) / (2sqrt5) =







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