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x to the 0
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1
|
|
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x to the 1
|
x
|
|
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0 to the x
|
0
|
|
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1 to the x
|
1
|
|
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x to the -2
|
1/x2
|
|
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how do you multiply two exponents with the same base?
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add the exponents
|
|
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how do you divide two exponents with the same base?
|
subtract the exponents
|
|
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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
|
|
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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
|
|
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how do you multiply or divide roots?
|
multiply inside and multiply outside
|
|
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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
|
|
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When do you reverse the sign of an inequality?
|
When you multiply or divide by a negative number.
|
|
|
expand(x+y)(x-y)
|
x2 - y2
|
|
|
factor x2 - y2
|
(x+y)(x-y)
|
|
|
expand (x+y)2
|
x2 + 2xy + y2
|
|
|
factor x2 + 2xy + y2
|
(x+y)2
|
|
|
expand (x-y)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...
|
a-b < 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
|
|
