#### Study sets matching "sat math formulas"

#### Study sets matching "sat math formulas"

Integers

remainder

real number

prime number

Any number in the set {... -2, -1, 0, 1, 2...}.

When an integer is divided by another, this is the... integer am…

Any number that you see on the SAT — positive, negative, big,…

a number that can only be divided evenly by 1 or itself

Integers

Any number in the set {... -2, -1, 0, 1, 2...}.

remainder

When an integer is divided by another, this is the... integer am…

Integer

Real Numbers

Complex numbers

Prime Numbers

Any number in the set {... -2, -1, 0, 1, 2...}

Any number that you see on the SAT — positive, negative, big,…

(the only numbers that are not real) are not covered on the SAT

A prime number can only be divided evenly by 1 or itself. Rem…

Integer

Any number in the set {... -2, -1, 0, 1, 2...}

Real Numbers

Any number that you see on the SAT — positive, negative, big,…

midpoint formula

slope formula

how to write the equation of a line

distance formula

((x₁+x₂)/2, (y₁+y₂)/2)

(y₂- y₁) / (x₂- x₁)

written as: ... y=mx+b... -m is the slope of the line.... -b is the y-…

d = √[( x₂ - x₁)² + (y₂ - y₁)²]

midpoint formula

((x₁+x₂)/2, (y₁+y₂)/2)

slope formula

(y₂- y₁) / (x₂- x₁)

Law of Cosines

Law of Sines

Distance Formula

Permutation

c^2 = a^2 + b^2 ﹣ 2abcosC ; used when given a triangle and at…

Side a/ Sin(A) = Side b/ Sin(B) = Side c/ Sin(C)

the order matters; P(n,r)=n!/ (n−r)!

Law of Cosines

c^2 = a^2 + b^2 ﹣ 2abcosC ; used when given a triangle and at…

Law of Sines

Side a/ Sin(A) = Side b/ Sin(B) = Side c/ Sin(C)

Area of a Circle

Circumference of Circle

Area of a Rectangle

Area of a Triangle

A=πr² ... (Area = pi (3.14) times radius squared)

C=2πr ... (Circumference = 2 x pi (3.14) x radius)

A=lw ... (Area = length x width)

A=½bh... (Area = ½ x base x height)

Area of a Circle

A=πr² ... (Area = pi (3.14) times radius squared)

Circumference of Circle

C=2πr ... (Circumference = 2 x pi (3.14) x radius)

Sum of roots

Product of roots

Complex Number

Absolute value of complex number

-b/a(b = 1, a=2)

c/a(-1)^n(take last term and divide by first term)(n = degree…

for every four powers(+--+)

Use pythagorean theorem

Sum of roots

-b/a(b = 1, a=2)

Product of roots

c/a(-1)^n(take last term and divide by first term)(n = degree…

How to solve absolute value equations

Formula for average

Formula for sum (within mean)

Explain how to use the factoring box

make a positive and negative version

Sum of list of values/ number of values

Number of values x Average

LAN

How to solve absolute value equations

make a positive and negative version

Formula for average

Sum of list of values/ number of values

Percent Increase

Percent Decrease

X/100*z

Z/100*X

(New Amount - Original Amount) / Original Amount x 100

(Original Amount - New Amount) / Original Amount x 100

Y

Y

Percent Increase

(New Amount - Original Amount) / Original Amount x 100

Percent Decrease

(Original Amount - New Amount) / Original Amount x 100

Harmonic Mean: average speed

Generalized Pythagorean Theorem: long…

General Quadratic Form

Vertex of a Parabola in Quadratic Form

[2(speed 1)(speed 2)]÷[speed 1 + speed 2]

d²=a²+b²+c²

y= ax²+bx+c

−b/2a

Harmonic Mean: average speed

[2(speed 1)(speed 2)]÷[speed 1 + speed 2]

Generalized Pythagorean Theorem: long…

d²=a²+b²+c²

Quadratic Formula

Absolute value with Inequalities

Percent Increase

log base-b A

-b plus or minus squareroot b^2 minus 4ac over 2a

[x]<n THEN -n<x<n ; [x]>n THEN x<-n or x>n

P(1+r)^n

(log A)/(log b)

Quadratic Formula

-b plus or minus squareroot b^2 minus 4ac over 2a

Absolute value with Inequalities

[x]<n THEN -n<x<n ; [x]>n THEN x<-n or x>n

Factor

Multiples

even+even

even-even

all the numbers by which a number can be divided evenly; 60's…

all the numbers that are evenly divisible by the original num…

even

even

Factor

all the numbers by which a number can be divided evenly; 60's…

Multiples

all the numbers that are evenly divisible by the original num…