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Math
Algebra
Pre Algebra
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Terms in this set (15)
Equivalent Expressions
Expressions that have the same value.
Exponent
The number that tells how many times the base is used as a factor.
Term
Each part of an algebraic expression separated by a plus or minus sign.
Variable
A symbol, usually a letter, used to represent a number
Distributive Property
To multiply a sum by a number, multiply each addend by the number outside the parentheses.
Associative Property
The way in which numbers are grouped does not change the sum or product.
Commutative Properties
The order in which numbers are added or multiplied does not change the sum or product.
numerical expression
a mathematical phrase involving only numbers and one or more operation symbols (no variables)
Sum
answer to an addition problem
Factor
a number being multiplied
Coefficient
a number before the variable that expresses how many of each variable there are.
Quotient
answer to a division problem
Product
answer to a multiplication problem
Constant
a value that does not change
Order of Operations
Parenthesis, Exponents, Multiplication or Division, then Addition or Subtraction (PEMDAS)
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Solve and check. $\frac { y } { - 11 } = - 6$
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Let $L: R^4 \rightarrow R^6$ be a linear transformation. (a) If dim(ker $L$) $= 2$, what is dim(range $L$ )? (b) If dim(range $L$) $= 3$, what is dim (ker $L$)?
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Plot each set of points on a rectangular coordinate system. Choose an appropriate scale. $$ \left(-1, \frac{1}{2}\right),\left(-2, \frac{1}{4}\right),\left(-3, \frac{1}{8}\right),\left(-4, \frac{1}{16}\right) $$
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