GRE MATH, Magoosh Math GRE Formulas,
GRE Math formulas
inscribed figure circumfrence. - if area of square is 36,each side of square is 6,find
diagnaol like missing part of triangle
length of arch in circle -
sum of all angles of a polygon - N=# OF SIDES
find one angle of regular polygon -
find minimum and maximum lengths for side of a triangle - if one side is 7 one
other side is 3 than greater than difference and less than sum.( 7-4=4 & 7+3=10)
so between 4.1 aand 9.9
find x and y intercepts of line - when x =0 is x intercept. y=0 y intercept b=y
intercept
slope formula -
graph linear equation - ...
,GRE MATH, Magoosh Math GRE Formulas,
GRE Math formulas
rise over run to graph slope -
solve sequence problem* - find difference between fifth and forth term n^2(n-1) -
> 5^2(5-1)=
solve multiple equations -
solve quadratic equations -
add multiple divide roots - 3 radicat 3 + radical 2= 4 radical 2. cannot add 3 radical
2 ND 2 RADCICAL 2
multiple roots - do radicals sepperate
negative powers - ^-2= 1/n^-2
fractional powers -
, GRE MATH, Magoosh Math GRE Formulas,
GRE Math formulas
probability of A and b happening - find prob of a multiply by prob of b
Combination formula (how many combos can be made) - n!/k! (N-k)! K= whats
being chosen, n= # of larger group
Permutation (how many outcomes) - N!/(n-k)!
What is the ratio of 2 ratios (a:b and b:c, what us a:c) - Multiply a:b by a and b:c by
b a:b:c= a:c
Combined work,how long would it take for everything to work together -
1/r+1/s=1/time (inverted)
R=2 s=twice as long so 1/2+1/4=3/4=4/3
Compound interest - Amount× (1+ interest rate (time)(# of times compounded
anually)/#of times coumpounded anually. Divide fraction first then add 1
simple interest formula - amountx(rate)(time)
GRE Math formulas
inscribed figure circumfrence. - if area of square is 36,each side of square is 6,find
diagnaol like missing part of triangle
length of arch in circle -
sum of all angles of a polygon - N=# OF SIDES
find one angle of regular polygon -
find minimum and maximum lengths for side of a triangle - if one side is 7 one
other side is 3 than greater than difference and less than sum.( 7-4=4 & 7+3=10)
so between 4.1 aand 9.9
find x and y intercepts of line - when x =0 is x intercept. y=0 y intercept b=y
intercept
slope formula -
graph linear equation - ...
,GRE MATH, Magoosh Math GRE Formulas,
GRE Math formulas
rise over run to graph slope -
solve sequence problem* - find difference between fifth and forth term n^2(n-1) -
> 5^2(5-1)=
solve multiple equations -
solve quadratic equations -
add multiple divide roots - 3 radicat 3 + radical 2= 4 radical 2. cannot add 3 radical
2 ND 2 RADCICAL 2
multiple roots - do radicals sepperate
negative powers - ^-2= 1/n^-2
fractional powers -
, GRE MATH, Magoosh Math GRE Formulas,
GRE Math formulas
probability of A and b happening - find prob of a multiply by prob of b
Combination formula (how many combos can be made) - n!/k! (N-k)! K= whats
being chosen, n= # of larger group
Permutation (how many outcomes) - N!/(n-k)!
What is the ratio of 2 ratios (a:b and b:c, what us a:c) - Multiply a:b by a and b:c by
b a:b:c= a:c
Combined work,how long would it take for everything to work together -
1/r+1/s=1/time (inverted)
R=2 s=twice as long so 1/2+1/4=3/4=4/3
Compound interest - Amount× (1+ interest rate (time)(# of times compounded
anually)/#of times coumpounded anually. Divide fraction first then add 1
simple interest formula - amountx(rate)(time)
