Shared Flashcard Set

Details

GRE Math Review
General math stuff for New GRE
27
Mathematics
Graduate
01/07/2012

Additional Mathematics Flashcards

 


 

Cards

Term
Area of a triangle
Definition
a=½bh
Term
Volume of a cube
Definition
V=s³
Term
Volume of a cylinder
Definition
V=πr²h
Term
How do you multiply fractions?
Definition
Multiply numerator times numerator and denominator times denominator.
Term
How do you add or subtract fractions?
Definition
Find a common denominator and make equivalent fractions. Then add or subtract.
Term
How do you divide fractions?
Definition
Invert the second fraction (recriprocal) and multiply.
Term
Circumference of a circle
Definition
2πr
Term
Diameter of a circle
Definition
2r
Term
Area of a circle
Definition
A=πr²
Term
How do you determine number of integers from x to y inclusive?
Definition
will = y-x+1
Term
How do you find the slope of a line?
Definition

y2-y1

-------

x2-x1

 

Term
Slope-intercept form?
Definition

y=mx+b

(m is the slope; x and y are coordinates on the line; b is the y-intercept)

Term
a2-b2 is the same as ...
Definition
(a+b)(a-b)
Term
Median
Definition
The number falling in the center of an ordered data set
Term
Mode
Definition
The value that appears most often.
Term
Probability
Definition
Favorable Outcomes/Total Possible Outcomes
Term
How do you multiply powers with the same base?
Definition
Add the exponents and keep the same base.
Term
How do you divide powers with the same base?
Definition
Subtract the exponents and keep the same base.
Term
How do you raise a power to a power?
Definition
Multiply the exponents.
Term
x-n is equal to ...
Definition

1

-----

xn

Term

v1

------

n

is equal to ...

Definition
The nth root of x.
Term
The three interior angles of a triangle add up to ...
Definition
180°
Term
The three exterior angles of a triangle add up to ...
Definition
360º
Term
Pythagorean theorum
Definition
a2+b2=c2
Term
Area of a parallelogram
Definition
base x height
Term
Area of a square
Definition
(length of a side)2
Term
Length of an arc
Definition

1(n/360)(2πr)

(n is the degree measure of the arc's central angle)


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