graphs

 

Bar Graph

Is to compare things between other things. It is best to make changes when the total has gotten bigger than 10.

Pie Graph.

It is best to use the pie chart when you are looking at how much something or someone has. It is best to use this when you are measuring stuff in low quantities of around 5-7 if it is bigger than that use a bar graph or a line graph since the slices will be small and hard to read.

Scatter graph 

Uses dots to represent values for two different numeric variables. 

Column Graph.

A column graph is used for summarizing data by height and specifies which quantities of data for each category. 

Triangles

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The sum of all the internal angles of a triangle is always 180o no matter how the triangle is constructed.

The length of any side of a triangle is shorter than the sum of the other two sides.

A triangle can always be split into two right triangles no matter how the triangle is constructed.

all their angles are less than 90o.

SIN-opposite over hypotenuse 

COS -adjacent over hypotenuse 

TAN-opposite over adjacent 

SOH- opposite over hypotenuse 

CAH -adjacent over hypotenuse 

TOA-opposite over adjacent 

the functions of a calculator 

 A calculator is a device that performs arithmetic operations on numbers. The simplest calculators can do only addition, subtraction, multiplication, and division. More sophisticated calculators can handle exponential operations, roots, logarithms, trigonometric functions, and hyperbolic functions.

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