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Test your basic knowledge |
GRE Math Strategies
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 two lines are parallel - the slope of one is
square
equal to the slope of the other
180 degrees
midpoint of a line segment joining 2 parts
2. Any integer is divisible by 4 - if
right angle
and
right triangle
the last two digits of the number make a number that is divisible by 4
3. The sume of x and y
consistent lines
x - y
x + y
equals
4. 5-12-13
cube
right triangle
polygon
belongs to
5. In a triangle - if ?c(interior angle in triangle) and ?d(exterior angle out of triangle) are supplmentary angles - than ?a and ?b are remote interior angles to <d - thus - a +b+c = 180 (triangle) c+d = 180 (supplementary angles)
n percent less than x
average
x is less than y
angle a and angle b = angle d
6. 1-v3- 2 (90-30-60)
quadratic equations
supplementary angles
x<0 and z=x+y
right triangle
7. N= combinations taken (order does not matter) r= rate at a time nCr or C(n -r) = (n)!/(r)! (remember to cancel out common numbers)
(x/100)m= n
combinations
polygon
180 degrees
8. y<x
x>y
negative
x is less than y
the last three numbers are divisible by 8
9. 1. round each number being added to one more place than it is being asked. 2. add the rounded numbers. 3. round off the sum to the desired number of places
approx sums
equal to the slope of the other
sphere
the percent of increase
10. Is drawn from the vertices perpendicular to the opposite sides. The lengths of these lines are useful in calculating the area of the trinagle since the area of the triangle is 1/2bh and the height and the _____are the same.
altitude of a triangle
approx products
regular polygon properties
angle inscribed in semicircle
11. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
w>0 and x>y
quadratic equations
all acute angles are equal and all obtuse angles are equal
approx sums
12. B>c+ d>e
b+d>c+e
consistent lines
xy< 0
two solutions
13. Any number squared or raised to an even power is
or
1 - 3 - 5 - 7 - 9
always positive or zero
properties of a rhombus
14. If two lines are perpendicular - the slope of one is the
1.7
y-x
negative reciprocal of the other
two solutions
15. Is the relation with ALL ordered pairs REVERSED.
3.16
inverse of a relation
parallelogram
reflex angle
16. C²= a²+b² and angle x and y are equal to 90°
two solutions
percent
0 - 2 - 4 - 6 - 8
right triangle
17. M=number of favorable ways n= total number of ways (two events occurring is the prob of the first times the prob of the second)
c x (john'S age)
3.16
probability
n percent less than x
18. The percent increase from x to y (y>x)
closed set
180 degrees
a+b+d=c+d
(y-x/x)100
19. Intersect at only one point - the point is the only solution to the pair of equations
even
negative
consistent lines
average
20. Then their intersection is the null or empty set - written as Ø
probability
xy
triangle
if two sets have no elements in common
21. The whole equals
if two sets have no elements in common
obtuse angle
the sum of parts
properties of a rectangle
22. Any line that connects two points on a circle.
chord
range of a relation
pythagorean theorem
x>y>0 and w>z>0
23. x²
inverse of a relation
a side< b side
the square of x
diameter
24. Between 90° and 180°
closed set
hexagon
obtuse angle
equal
25. M= y2-y1/x2-x1
x intercept
slope of a line joining two points
22/7 or 3.14
supplementary angles
26. Sum of an odd and an even number is
no solutions
odd
inverse of a relation
implies
27. x/100
a relation is a function
perpendicular bisectors
x%
negative reciprocal of the other
28. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
rectangular solid
w<0 and x>y
cylinder
times
29. x/100
trapezoid
parallel
x percent
never divide by zero
30. x+w> y+z
the perpendicular distance
similar triangles
x>y and w>z
or
31. Sin 30°
360 degrees
perpendicular bisectors
1/2
expression of an odd number
32. Any integer is divisible by 10 - if
opposite the greatest side
equal
the last digit is 0
v3/2 or .87
33. Write down every member in one or both of the sets - the union of two sets is a new set. the union of set A and B is written as A?B
combinations
finding the union of sets
triangle or straight line
even
34. The distance between two parallel lines or from a point to a line always means
the perpendicular distance
expression of an odd number
permutations
radius
35. ?
x+y/xy
3.16
central angle
22/7 or 3.14
36. x>0 and y>0 or x<0 and y<0
equilateral triangle
xy>0
perpendicular bisectors
range of a relation
37. Sum of two even numbers is
average
xy>0
xy
even
38. All odd numbers end in the digits of
1 - 3 - 5 - 7 - 9
1.7
expression of an even number
x>y and w>z
39. z>y
b+d>c+e
the last digit is 0
y-x
x<0 and z=x+y
40. All angles are right angles and diagonals are equal 1.each pair of opposite sides are equal 2. the diagonals bisect eachother 3. the opposite angles are equal 4. one diagonal divides it into two congruent triangles and two diagonals divides it into
x - y
right triangle
properties of parallelograms
properties of a rectangle
41. x + (n/100)x
rectangle
domain of a relation
n percent greater than x
simultaneous equations in 2 unknowns
42. x>z
domain of a relation
equals
±vx
x>y and y>z
43. A+b=c+ d=d
x percent
a+b+d=c+d
negative
1.7
44. Volume= 4/3?r² surface area= 4?r²
x + y
sphere
y-x
parallelogram
45. (amount of decrease/original amount) x 100
a?n
the percent of decrease
two solutions
supplementary angles
46. Sin 45°
v2/2 or .71
never divide by zero
all acute angles are equal and all obtuse angles are equal
n percent greater than x
47. Of
standard deviation
the sum of its digits is divisible by 3
x>y
times
48. x>0 and y<0 or x<0 and y >0
null set
xy< 0
medians of a triangle
is a subset of
49. x older than y
semicircle
x + y
y angle< x angle
it is also divisible by 2 and 3
50. 2k
quadratic equations
the perpendicular distance
one solution
expression of an even number