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Terms in this set (10)
what are the properties of a polygon
1. A closed figure
2. No curved edges
3. 2 d
4. At least 3 sides
Write down and explain the pythagorean theorem and how you use it to find the missing leg of a triangle whose hypotenuse is 100 in and one leg is 16 in.
a2+b2=c2 ,a and b are the legs, c=hypotenuse. a2+162=1002
Explain the steps that you would use to solve a basic two step equation.
1: Isolate the variable by getting an addend of 0. To do this: add the opposite of the addend to both sides of equation.
2: Isolate the variable by getting a coefficient of 1. To do this: multiply both sides of equation by reciprocal of the coefficient
Define Slope, how slope is used, and where you can find slope in an equation written in the form y=mx+b
slope is the steepness of a line expressed as a ratio. Slope intercept form:y=mx+b. m=slope. used:using the slope (rise over run) you can plot the points for a linear equation
what does it mean for an equation to be linear? How do you know that an equation is linear?
A linear equation has two variables that represent ordered pairs. If the ordered pairs form a line when graphed, then the equation is linear.
Explain how you graph a line using slope intercept form
You would first find your y intercept and then use rise over run
what is the counting principle? Give an example of a problem you would use it for.
The possible outcomes when there are 2 or more ways to do something. Ex. flavors of ice cream and type of topping. 3 flavors(chic, van, straw) 5 toppings is different combinations (fudge, sprinkles etc)
What is a proportion? What property do you use to solve them?
A proportion states two ratios are equal. the cross products property is used to solve a proportion for an unknown.
What is unit cost? Why is it helpful to find something's unit cost
Unit cost is the price of an item per unit of measure. This helps determine which item is a better buy.
What method can you use to find a percent of a number if given the part and whole? What about finding the whole if you're given the percent and part?
1. use a proportion x/100=part/whole
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