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algebra expressions

QuestionAnswer
algebraic expressions have at least one variable and one expression
variable a letter that represents an unknown value can use any letter
constant a term without a variable; numbers
coefficient the number part of a term with variables
term a term is either a single number or variable, or numbers and variables multiplied together.
like term two or more terms with the same variable or exponent.
sum answer to a addition problem
difference answer to a subtraction problem
product answer to a multiplication problem
quotient answer to a division problem
fewer than / less than subtract reverse order of expression
how much more / less subtract
% or fraction of multiply
each divide
than/ from reverse the order
associative property the way in which numbers are grouped when added or multiplied does not change the answer
commutative property the order in which numbers are added or multiplied does not change the answer
identity property of addition the sum of an addend & 0 is the same as the addend
identity property of multiplication the product of any factor & 1 is the same as the factor
additive inverse property adding a number and its opposite will produce a sum of zero
multiplicative inverse property multiplying any number and its inverse equals one
associative property (x+7)+9=x+(7+9)
associative property 4(3x9)=(4x3)9
commutative property (x+7)+9=9+(7+x)
commutative property 5x6=6x5
identity property of addition x+0=x
identity property of multiplication 6(1)=6
multiplicative inverse property 4x1/4=1
additive inverse property -5+5=0
distributive property 4(x+3)=4x+12
distributive property 16+40=8(2+5)
sample size how many people or things you are testing
mean used to get the average amount
median used to describe the middle number
mode used to describe the number that occurs most often
range is a measure of variability
interquartile range the range of the middle 50% of the data
quartile 1 in the middle of the smallest number and the middle number of your data set
quartile 3 the middle of the middle number and the biggest number of your data set
mean absolute deviation the average distance that the data points in a set of data are from the mean
outlier the number that is out of place
symmetrical both sides are exactly equal
right skewed the tail of the data is pointing right
left skewed the tail of the data is pointing left
bi -modal the data has two modes
likely it is very possible something can happen
unlikely it is not very possible something can happen
certain it has to happen
impossible it can't happen
equal likely it has a half and half chance to happen
probability how likely something is to happen
uniform what the number or variable is
complement the opposite of the event that you want to happen
Created by: user-1969999
 

 



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