tsi2 practice

Xᵃ+Xᵇ

Xᵃ+ᵇ

(Xᵃ)ᵇ

Xᵃˣᵇ

(XY)ᵃ

XᵃYᵃ

Xᵃ*Xᵇ.

Xᵃ+ᵇ

Xᵃ/Xᵇ

Xᵃ-ᵇ

(X/Y) ᵃ

X ᵃ/Y ᵃ

X⁻ᵃ

1/Xᵃ

X⁰

1

(Xᵃ/Xᵇ) ⁻ᶜ

(Xᵇ/Xᵃ/)ᶜ

xᵃ/ᵇ

ᵇ√xᵃ

Trapezoid area

1/2h(b1+b2)

circle area

πr²

circle circumference

2πr

cube volume

side³

cube area

6*(side)²

rectangular prism volume

lwh

rectangular prism surface area

2lw+2lh+2wh

cylinder volume

πr²h

Cylinder surface area

2πrh+2πr²

triangle area

1/2bh

when finding central angle

slope formula

(y₂- y₁) / (x₂- x₁)

part of a percent

percent x whole = ?

base of a percent

part/percent

percent

part/base

flip the inequality sign when

dividing or multiplying

<

open circle/dashed line

≥

closed circle/normal line

permutations formula

nPk = n!/(n-k)!

combinations formula

nCr = n!/r!(n-r)!

distance between two points formula

d = √[( x₂ - x₁)² + (y₂ - y₁)²]

midpoint formula

(x₁+x₂)/2

inversely proportional variables

y = k/x

x2+x+0

multiply to find 0 and add or subtract to find X

adding fractions

a/b + c/d = ad + bc/bd (find common denominator)

subtracting fractions

a/b - c/d = ad-bc/bd (find common denominator)

multiply fractions

multiply the numerators and multiply the denominators

dividing fractions

(a/b)/(c/d)=a/b x d/c = ad/bc

prime numbers

a number which can only be divided by itself and 1

composite numbers

A whole number greater than 1 that has more than two factors.

SOHCAHTOA

SIN (Opposite/Hypotenuse) COS (Adjacent/Hypotenuse) TAN (Opposite/Adjacent)

y is not a function of x if

there are two or more points with the same x value but different y

y is a function of x if

each x has a different y

triangle angles add up to

180

parabola vertex formula

y=a(x-h)² +k

(h

reflecting over the y axis causes

the x value to switch signs

a parallel line has the

same slope

√-x

not as real number

100*2ᵗ/⁹

random

quadratic formula

-b±√b²-4ac/2a

time

-b/2a