SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
GRE Math: Common Errors
Start Test
Study First
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. If 10800 is invested at a simple interest rate of 4% - what is the value of the investment after 18 months?
A central angle is an angle formed by 2 radii.
An expression with just one term (-6x - 2a^2)
$11 -448
28. n = 8 - k = 2. n! / k!(n-k)!
2. A number is divisible by 6 if...
(amount of increase/original price) x 100%
4:5
3 - -3
Its divisible by 2 and by 3.
3. Formula for the area of a sector of a circle?
PEMDAS (Parentheses Exponents Multiplication/Division Addition/Subtraction)
From northeast - counterclockwise. I - II - III - IV
Its divisible by 2 and by 3.
Sector area = (n/360) X (pi)r^2
4. What is the ratio of the surface area of a cube with an edge of 10 to the surface area of a rectangular solid with dimensions 2 - 4 - and 6?
8
75:11
The curve opens downward and the vertex is the maximum point on the graph.
Two angles whose sum is 180.
5. 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?
48
(base*height) / 2
9 & 6/7
4:9. The ratio of the areas of two similar triangles equals the square of the ratio of the corresponding sides.
6. What is the sum of the angles of a triangle?
A reflection about the axis.
The union of A and B.
4sqrt3. The triangle can be divided into two equal 30-60-90 triangles with side 6 as the side in which 6 = xsqrt3. So x =2sqrt3...
180 degrees
7. Legs 5 - 12. Hypotenuse?
0
13
A term is a numerical constant or the product (or quotient) of a numerical constant and one or more variables. (3x - 4x^2 and 2a/c)
(a - b)(a + b)
8. What is a set with no members called?
The empty set - denoted by a circle with a diagonal through it.
2.592 kg
III
Angle/360 x 2(pi)r
9. 8.84 / 5.2
$3 -500 in the 9% and $2 -500 in the 7%.
1.7
2sqrt6
Undefined
10. Pi is a ratio of what to what?
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
11. 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?
Triangles with same measure and same side lengths.
9 : 25
1
1.0843 X 10^11
12. What is the coefficient of the x^2 term in the product of (x + 1)(x + 2)(x -1)?
A set with no members - denoted by a circle with a diagonal through it.
2
4725
The steeper the slope.
13. 50 < all primes< 60
Ax^2 + bx + c where a -b and c are constants and a /=0
53 - 59
37.5%
A = I (1 + rt)
14. What is the side length of an equilateral triangle with altitude 6?
When we need to avoid having a zero in the denominator or avoid taking the square root of a number.
4sqrt3. The triangle can be divided into two equal 30-60-90 triangles with side 6 as the side in which 6 = xsqrt3. So x =2sqrt3...
1/a^6
The empty set - denoted by a circle with a diagonal through it.
15. (-1)^3 =
The set of output values for a function.
1
13pi / 2
27^(-4)
16. What is the maximum value for the function g(x) = (-2x^2) -1?
75:11
1
31 - 37
The greatest value minus the smallest.
17. What are the smallest three prime numbers greater than 65?
Divide by 100.
7 / 1000
C = 2(pi)r
67 - 71 - 73
18. Which quandrant is the lower right hand?
PEMDAS (Parentheses Exponents Multiplication/Division Addition/Subtraction)
1/2 times 7/3
IV
y = 2x^2 - 3
19. If an inequality is multiplied or divided by a negative number....
The empty set - denoted by a circle with a diagonal through it.
4:9. The ratio of the areas of two similar triangles equals the square of the ratio of the corresponding sides.
PEMDAS (Parentheses Exponents Multiplication/Division Addition/Subtraction)
The direction of the inequality is reversed.
20. x^6 / x^3
7 / 1000
The set of elements which can be found in either A or B.
x^(6-3) = x^3
A 30-60-90 triangle.
21. Define an 'expression'.
An algebraic expression is a combination of one of more terms. Terms in an expression are separated by either addition or subtraction signs. (3xy - 4ab - -5cd - x^2 + x - 1)
1/(x^y)
F(x-c)
6 : 1 : 2
22. 7/8 in percent?
12! / 5!7! = 792
87.5%
16^8 - 64^5 = (4^3)^5 = 4^15 - 16^8=(4^2)^8 = 4^16
x^(2(4)) =x^8 = (x^4)^2
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.
No - the input value has exactly one output.
The empty set - denoted by a circle with a diagonal through it.
1/a^6
90 degrees
24. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. How many different people can get the three prizes?
12sqrt2
Two angles whose sum is 180.
10! / 3!(10-3)! = 120
(amount of decrease/original price) x 100%
25. What is a tangent?
A circle centered at -2 - -2 with radius 3.
Move the decimal point to the right x places
A tangent is a line that only touches one point on the circumference of a circle.
The third side is greater than the difference and less than the sum.
26. Which is greater? 27^(-4) or 9^(-8)
288 (8 9 4)
4.25 - 6 - 22
The interesection of A and B.
27^(-4)
27. (-1)^2 =
70
3sqrt4
1
$3 -500 in the 9% and $2 -500 in the 7%.
28. A number is divisible by 9 if...
1.7
The sum of digits is divisible by 9.
Part = Percent X Whole
1:1:sqrt2
29. Legs 6 - 8. Hypotenuse?
0
Use Pythagorean theorem twice. (Once across the surface and then a is the diagonal of surface and b is an edge).
The two xes after factoring.
10
30. x^2 = 9. What is the value of x?
3sqrt4
3 - -3
All real numbers which can'T be expressed as a ratio of two integers - positive and negative (pi - -sqrt3)
(a - b)(a + b)
31. If you have a set of n objects - but you only want to order k of them - what formula do you use to determine the number of permutations?
1
The shortest arc between points A and B on a circle'S diameter.
N! / (n-k)!
12! / 5!7! = 792
32. What number between 70 & 75 - inclusive - has the greatest number of factors?
441000 = 1 10 10 10 21 * 21
72
27^(-4)
No - only like radicals can be added.
33. What is a central angle?
An infinite set.
A central angle is an angle formed by 2 radii.
True
62.5%
34. What is the order of operations?
Ax^2 + bx + c where a -b and c are constants and a /=0
13
12! / 5!7! = 792
PEMDAS (Parentheses Exponents Multiplication/Division Addition/Subtraction)
35. The four angles around a point measure y - 2y - 35 and 55 respectively. What is the value of y?
Part = Percent X Whole
90
31 - 37
The curve opens upward and the vertex is the minimal point on the graph.
36. What is the slope of a vertical line?
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
37. What is the slope of a horizontal line?
(a - b)(a + b)
70
A set with no members - denoted by a circle with a diagonal through it.
0
38. 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?
(12/2) x (sqrt15 / sqrt5) = 6sqrt3
70
10! / (10-3)! = 720
Factors are few - multiples are many.
39. When does a function automatically have a restricted domain (2)?
Area of the base X height = (pi)hr^2
1/2 times 7/3
When we need to avoid having a zero in the denominator or avoid taking the square root of a number.
61 - 67
40. a^2 - b^2
(a - b)^2
1.0843 X 10^11
180
(a - b)(a + b)
41. Whats the difference between factors and multiples?
Undefined
(base*height) / 2
C = 2(pi)r
Factors are few - multiples are many.
42. Describe the relationship between 3x^2 and 3(x - 1)^2
The graph of 3(x - 1)^2 is a translation (shift) of the graph one unit or space to the right.
10! / 3!(10-3)! = 120
Move the decimal point to the right x places
4:9. The ratio of the areas of two similar triangles equals the square of the ratio of the corresponding sides.
43. If the two sides of a triangle are unequal then the longer side...
II
67 - 71 - 73
Lies opposite the greater angle
1.0843 X 10^11
44. Order of quadrants:
From northeast - counterclockwise. I - II - III - IV
1.7
1/a^6
441000 = 1 10 10 10 21 * 21
45. 20<all primes<30
48
The third side is greater than the difference and less than the sum.
(base*height) / 2
23 - 29
46. A number is divisible by 3 if ...
All the numbers on the number line (negative - rational - irrational - decimal - integer). All the numbers on the GRE are real. (-2 - 1 - .25 - 1/2 - pi)
The greatest value minus the smallest.
The sum of its digits is divisible by 3.
Two angles whose sum is 180.
47. If Madagascar'S exports totaled 1.3 billion in 2009 - and 4% came from China - what was the value in millions of the country'S exports to China?
Members or elements
52
130pi
(a - b)^2
48. When the 'a' in the parabola is negative...
9 : 25
The curve opens downward and the vertex is the maximum point on the graph.
55%
Two equal sides and two equal angles.
49. 1/2 divided by 3/7 is the same as
1/2 times 7/3
Members or elements
2.4. We calculate the area (6) and then turn the triangle on its side and use x as the height to calculate again. (5x)/2=6
The set of elements found in both A and B.
50. Can the input value of a function have more than one output value (i.e. x: y - y1)?
No - the input value has exactly one output.
61 - 67
The set of elements which can be found in either A or B.
A chord is a line segment joining two points on a circle.