15 Thing’s I Learned This Year Tamenia Smith. Equations Have An Equal Sign Equations –Is a statement that shows two numbers or expressions that are equal.

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Presentation transcript:

15 Thing’s I Learned This Year Tamenia Smith

Equations Have An Equal Sign Equations –Is a statement that shows two numbers or expressions that are equal. An equations has an equal sign. Example’s 2=2 17=2+15 X=7 T+3=8 Example’s 2=2 17=2+15 X=7 T+3=8

Scale Factor Scale Factor – number you multiply by to get a dilation Dilation- when a figure is increase or decrease by a scale factor Scale Factor – number you multiply by to get a dilation Dilation- when a figure is increase or decrease by a scale factor

Pythagorean Theorem Use This If You Are Looking Foe C. A2 + b2=c2 Leg-b

Box And Whisker Plot 1. Order least to greatest 2.find the median middle, If there are two pots in the middle find the mean of the data 3.find the upper quartile 4.find the lower quartile 5.find the lower extreme (outliner) 6.find the upper extreme (outliner) 1. Order least to greatest 2.find the median middle, If there are two pots in the middle find the mean of the data 3.find the upper quartile 4.find the lower quartile 5.find the lower extreme (outliner) 6.find the upper extreme (outliner)

Example )(-2)+(-5)=7 1.) add the numbers together. 2.)give the answer the same sign. Example )(-2)+(-5)=7 1.) add the numbers together. 2.)give the answer the same sign.

Scientific Notation Scientific Notation is a way of expressing really big numbers or really small numbers 25,ooo,ooo,ooo- Standard form Stanard form 2.5 (10 13times)Positive Decimal (negative decimal 25,ooo,ooo,ooo- Standard form Stanard form 2.5 (10 13times)Positive Decimal (negative decimal

Subtracting Integer’s Same –Change –Change 1.)1# Stays The Same 2.)Change the sign to addition. Change the # After it to its opposite. Use addition Rules. Same –Change –Change 1.)1# Stays The Same 2.)Change the sign to addition. Change the # After it to its opposite. Use addition Rules. Ex. -3n-(-6) -3+6=3 Ex. -3n-(-6) -3+6=3

Percent Proportions A percent is a ratio that compares a number to 100. Part % Whole=100 Ex. What Is 30% Of 60 x X=18 Part % Whole=100 Ex. What Is 30% Of 60 x X=18

Dimensional Change Oringal Perimeter x S.F=new perimeter ….. Ex. 2in. X scale factor of 2 3in. 4in. P.of org.=10in. 6in. Ex. 2in. X scale factor of 2 3in. 4in. P.of org.=10in. 6in.

Surface Area Lateral –without Bases Total- All Surface Area. Surface Area- is finding the area of all sides & adding them up Lateral –without Bases Total- All Surface Area. Surface Area- is finding the area of all sides & adding them up Cylinder A = R cm Cylinder A = R cm 112cm B=

Exponent

Order Of Operations’ / / /2 4. = / / /2 4. =7 PEMDAS You Do The Addition First. Then The Division. PEMDAS You Do The Addition First. Then The Division.

Greatest Common Factors And Least Common Factors

Subtracting Fractions 7 3 = = Take Away 3 Pieces Then You Get Your Answer And Simplify That And You Get You Answer. 1 Take Away 3 Pieces Then You Get Your Answer And Simplify That And You Get You Answer.