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54 Cards in this Set
 Front
 Back
x to the 0

1


x to the 1

x


0 to the x

0


1 to the x

1


x to the 2

1/x2


how do you multiply two exponents with the same base?

add the exponents


how do you divide two exponents with the same base?

subtract the exponents


how do you raise one exponent to another?

multiply the exponents


what do you get when you raise a negative number to an even exponent?

a positive number


what do you get when you raise a negative number to an odd exponent?

a negative number


when can you add or subtract roots?

when the number under the radical is the same


how do you multiply or divide roots?

multiply inside and multiply outside


rule of divisibilty for 2

any even number


rule of divisibility for 3

sum of the digits is divisible by 3


rule of divisiblity for 4

if last two digits are divisible by 4


rule of divisibility for 5

ends in 5 or 0


rule of divisibility for 6

if its even and the sum is divisible by 3


rule of divisibility for 8

last three digits divisible by 8


rule of divisibility for 9

sum of digits is divisible by 9


rule of divisibility for 10

ends in 0


When do you reverse the sign of an inequality?

When you multiply or divide by a negative number.


expand(x+y)(xy)

x2  y2


factor x2  y2

(x+y)(xy)


expand (x+y)2

x2 + 2xy + y2


factor x2 + 2xy + y2

(x+y)2


expand (xy)2

x2  2xy + y2


degrees in a straight line

180


degrees in a parallelogram

360


degrees in a triangle

180


degrees in a circle

360


what is fred's theorem?

when a line crosses 2 parallel lines, all big angles are equal, all small angles are equal


area of a parallelogram

a=bh


largest angle of a triangle is...

opposite the largest side


smallest angle of a triangle is...

opposite the smallest side


isosolece triangle has...

2 equal sides w/ 2 equal angles


equalateral triangle has...

3 equal sides w/ 3 equal angles


area of a triangle is...

a=1/2bh


Third side rule of a triangle is...

ab < c < a+b


diameter of a circle

d = 2r


cirumfrence of a circle

c = 2 pie r


area of a circle

a = pi r2


Mean

Average


Median

Middle # or average of two middle #s


Mode

# that appears most frequently in a set


Range

Difference between highest and lowest number


Give the 5 sets of pythagorean triples

3,4,5
6,8,10 60,80,100 5,12,13 7,24,25 

What are the side relationships in a 30:60:90 triange?

30  a
60  a sq.rt. 3 90  2a 

What are the side relationships in a right isosolece triangle?

a, a, a sq.rt. 2


What is the approx value of the square root of 2?

1.4


What is the approx. value of the square root of 3?

1.7


coordinates for the xintercept

(x,0)


coordinates for the yintercept

(0,y)


slope

change in y / change in x


Unpack y=mx+b

y = (slope)x + yintercept
