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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. Scale Factor.
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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
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)
Adding Integers' • 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 • 0.00000000025-Stanard form • 2.5 (10 13times)Positive Decimal • 2.5 -10 (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. • 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 30 • 60 100 • 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.
Surface Area • Lateral –without Bases • Total- All Surface Area. • Surface Area- is finding the area of all sides & adding them up Cylinder A = R2 18.75 18.75 112.00 149.50cm B= 112cm 11.75
Exponent • a symbol or number placed above and after another symbol or number to denote the power to which the latter is to be raised:
Order Of Operations’ • 4 + 10/2 • 14/2 • 14/2 • =7 • PEMDAS • You Do The Addition First . • Then The Division.
Greatest Common Factors And Least Common Factors • Gfc:24 and 36 • 24-1,2,3,4,6,8,24 • 36-1,2,3,4,6,8,12,36
Subtracting Fractions • 7 3 = 4 1 • 8 8 8 2 • 1 Take Away 3 Pieces • Then You Get Your Answer And Simplify That And You Get You Answer.