math formulas

Question 1

whats an integer

Answer 1

a number that is not a fraction; a whole number.

Question 2

what is a rational number

Answer 2

In mathematics, a rational number is a number that can be expressed as a fraction

Question 3

proportions and ratios

Answer 3

cross multiply

Question 4

least common multiple

Answer 4

smallest number 2 numbers can multiply to evenly: start with smallest answer

Question 5

greatest common factor

Answer 5

greatest number 2 numbers can be divided by evenly: start with the largest answer

Question 6

fundamental counting principle

Answer 6

how many combinations? - multiply all numbers

Question 7

x^1

Answer 7

x

Question 8

x^0

Answer 8

1

Question 9

Circumference

Answer 9

2pi r

Question 10

arc length

Answer 10

theta/360*2pir

Question 11

area of a circle

Answer 11

pir^2

Question 12

sector area

Answer 12

theta/360*pir^2

Question 13

30-60-90 triangle

Answer 13

half an equilateral triangle- x,xsr3,3x

Question 14

45-45-90 trianlge

Answer 14

half a square - x,x,xsr2

Question 15

parallelogram area

Answer 15

bh

Question 16

trapazoid area

Answer 16

(b1+b2/2)h

Question 17

surface area

Answer 17

sum of area of all sides

Question 18

cylinder volume

Answer 18

(pir^2)h

Question 19

triangular prism

Answer 19

(bh/2)l

Question 20

cone volume

Answer 20

1/3(pir^2)h

Question 21

pyramid volume

Answer 21

1/3(lw)h

Question 22

irrational numbers

Answer 22

nonrepeating decimals

Question 23

natural numbers

Answer 23

1,2,3,4++++

Question 24

imaginary numbers

Answer 24

i

Question 25

arithmetic sequence - find the nth term

Answer 25

an=a1+(n-1)d
d= arithmetic differnece

Question 26

geometric sequence - find the nth term

Answer 26

an=a1(r^n-1)
r=ratio

Question 27

gap distance

Answer 27

gap = total distance/number of objects-1

Question 28

law of cosines

Answer 28

find the missing side of a nontight triangle
c^2=a^2+b^2-2abcos<c

Question 29

law of sines

Answer 29

sina/a=sinb/b=sinc/c

Question 30

circle equation

Answer 30

(x-h)^2+(y-k)^2=r^2

Question 31

elipse equation

Answer 31

(x-h)^2/a^2+(y-k)^2/b^2=1
a = horizontal radius
b=vertical radius

Question 32

and probability

Answer 32

multiply

Question 33

or probability

Answer 33

add

Question 34

chance probability

Answer 34

percentage

Question 35

360 degrees=

Answer 35

2pi radians

Question 36

domain

Answer 36

x

Question 37

range

Answer 37

y

Question 38

vertex form

Answer 38

y=(x-h)^2+k

Question 39

Vertical asymptote

Answer 39

denominator =0