SAT math 10 Flashcards
binomial cube
(a+b)*
a+3a^b + 3ab^+ b
binomial cube
(a-b)*
a- 3a^b + 3ab^+ b
sum of 2 cubes
a+b=
a + b)(a^- ab + b^
difference of 2 cubes
a-b=
a - b)(a^ + ab + b^
n [ x ^
x ^/n
i
can’t be in denominater, multiply by conjugate
[-1
i2
-1
i3
-i
i4
i
if i raised to higher exponent than 4, divide ex by 4
.25= 1
.5 = i2
.75 = i3
no deci= i4
complex #
a+bi
complex conjugate
(a+bi)(a-bi)
facotring
ac b
x +
quadratic graphing
line of symmetry
-b
2a
c= y intercept
a(x-h)^ + k
other grpahing
right (x-2)
a= stretch/shrink
probability: intersection in venn diagram
n
u= union/or
addition rule
AuB
Pa+Pb- p(anb)
not a (has macron)
1-P(A)
A given B
P(AnB)
p(B)
events are indpendent if
A x B = A n B
bell curve
68% one standard deviation
95=2
99.7=3
deviation
cursive o
mean
macron x, cursive u
polynomial
polynomial
vertical asym: set denom to zero
```
horizontal asym:
based on degree
b/s= none
s/b= 0
s/s= 1
~~~
to find sum of the first n in a sequence
^= n
a(1-r^)
1-r
polynomial division
divide first term, multiply answer by term on to= subtract, repeate
smaller
side thats skewd
simple random
calc generate random #
systematic
put data in order n choose every 5th one
stratified
put into 2 groups & the simple random for each
cluster
put in groups then choose a group
logbY= *
b*=y
logex=y
lnx=y
loga
logb
logbA
equation
y=log(3x-5)
domain: 3x-5> 0
asymptote: 3x-5=0
logb(AxB)
logbA + logbB
logb(A/B)
logbA-logbB
logbA^
^logbA
properties of rectangle
parallelogram
all angles right
diagonals congruent
properties of rhombus
all sides congruent
diagonals are angle bisectors
diagonals are perpendicular bisect
4 congruent right triangles
properties of square
rombus, parallelogram, rectangle
4 congruent isosceles right triangle
