Things to Review for Finals Flashcards
- natural numbers
natural numbers (also called counting numbers) are whole numbers greater than zero. 1,2,3,4…
- whole numbers
Whole numbers are the numbers starting with zero. 1,2,3,4…
- integers
integers are the whole numbers and their opposites
… -3,-2,-1,0,1,2,3…
- rational numbers
rational numbers are the numbers that can be expressed in the form (a/b) where a and b are integers and b is not zero. The decimal representation will terminate (end) or show a repeating pattern. (1/2), 0.5, (5/1), 0, (1/3), 0.3333333333, (square root of) 4
- irrational numbers
irrational numbers are numbers that cannot be expressed in the form (a/b) where a and b are integers. The decimal representation never ends or never shows a repeating pattern. (Pi), (square root of) 2, (square root of) 3, (square root of) 5
- real numbers
real numbers are the set of all numbers including rational and irrational numbers
- What is an open equation?
An open equation is an equation if it contains one or more variables
- What is an identity?
An identity is an equation that if you cancel out the variable, the statement is true
- Define corresponding
Having the same position
- Two polygons are similar if:
> corresponding angels are congruent (equal)
> the lengths of corresponding sides are in proportion, called the scale factor
- What’s the percent proportion?
(a/b) = (p/100) *Use this proportion to solve given problems
- What is or how do you find relative error?
Relative error is the ratio of the absolute value of the difference of a measured (or estimated) value and an actual value compared to the actual value (ESTIMATION 180)
> Relative Error = ([measured or estimated value - actual value])/(actual value)
- What is the special rule about dividing or multiplying negatives?
When you multiply or divide each side of an inequality by a negative number, you have to reverse the inequality symbol.
- Work on…
Practice compound inequalities»_space;> 3.6
- Work on..
Work on Scatter plots and trend lines
