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TSIA2 Math
How to - /+ unlike fractions - ,,,,,,,,answer,,,,,,,- a find the common denominator and multiply. 1/2(4)+3/8-> 4/8+3/8= 7/
- b add the numerators and reduce.
- Just divide both n&d by the number How to find the common denominator - ,,,,,,,,answer,,,,,,,The common denominator is the lcm of the given fractions.
- 3/4,1/ 4,8,12,16, 1,2,3,4, 3/4(5),1/5(4) =15/20,4/ Multiply both fractions by their LCM The square root of a number is always... - ,,,,,,,,answer,,,,,,,positive Find Dimensions means... - ,,,,,,,,answer,,,,,,,Find the length and width Ordered pair - ,,,,,,,,answer,,,,,,,Any air of numbers for which the order is important. (x,y) Divisibility Rules - ,,,,,,,,answer,,,,,,,2- When the number is even 3 - the sum of the digits is divisible by 3 5 - limit digit is 0 or 5 9 - sum is divisible by 9 10 - ends in 0 6 - odd numbers and 2 Prime factorization - ,,,,,,,,answer,,,,,,,The numbers multiplied together to get the original to get the original number. Reducing Fractions - ,,,,,,,,answer,,,,,,,Divide the numerator and denominator by their gcm. 30/ 30, 1, gcf= 15/ The gcf of both terms is 1. Comparing Proper Fractions - ,,,,,,,,answer,,,,,,,1)Find multiples to make common denominators
- Multiply fractions by lcm to get common denominators 15/24>14/ Mixed Number to an Improper Fraction - ,,,,,,,,answer,,,,,,,Multiply Denominator by whole number Add result to numerator. How to tell if an ordered pair is a function - ,,,,,,,,answer,,,,,,,If multiple X coordinates in the set, the relation is not a function. Dividing Decimal by Decimal - ,,,,,,,,answer,,,,,,,A decimal (power of 10) moves to the right = to # of 0s in the power of 10 Slope Formula - ,,,,,,,,answer,,,,,,,m=y2-y1/x2-x Converting Decimals to fractions - ,,,,,,,,answer,,,,,,,-1 Write the denominator as the furthest place from the decimal to the right 0.08=x/
- 2 Write the numerator as the terms to the right of the decimal 8/
- 3 Reduce by dividing by the GCF 42= 425= =2/ Multiplying Decimals - ,,,,,,,,answer,,,,,,,1- Set them above each other 16.1(2.4) =16. *2.
- 2 Multiply then add = 3 - The total of digits behind the decimals in the problem is how many are behind it in the result. Point Slope Formula - ,,,,,,,,answer,,,,,,,y-y1=M(x-x1) Cross canceling ( multiplication & reducing fractions) - ,,,,,,,,answer,,,,,,, Degrees of Exponents - ,,,,,,,,answer,,,,,,,Name - Degree- Exmple Constant- 0 - - 6 Linear - 1 - 5x+ Quadratic - 2 - 5x^2+ cubic - 3 - 2x^3 +10x^
Area o Rectangle - ,,,,,,,,answer,,,,,,,1/2 (base)(height)Triangle is 1/2 a rectangle. Area o Circle - ,,,,,,,,answer,,,,,,,A= pi r^ Area o parallelogram & Trapezoids - ,,,,,,,,answer,,,,,,,P- A=B(H) T- A=1/2(b1+b2)h Equivalent Fractions - ,,,,,,,,answer,,,,,,,Both Terms the same ratio when reduced. 7/10,14/20 divided by 2=7/ equivalent 2/8,12/16 divided by 4= 1/4 & 3/ not-equvalent Ordered Pair - ,,,,,,,,answer,,,,,,,Any Pair of numbers for which order is important Perpendicular Lines are... - ,,,,,,,,answer,,,,,,,Negative reciprocal slopes 2/3& - 3/ Any vertical lines or undefined line... - ,,,,,,,,answer,,,,,,,has no slope The Intercept method - ,,,,,,,,answer,,,,,,,When looking for x, sub for y & visa versa. The chart graphing method, y & x do not have to be alone in the formula. Slope formula - ,,,,,,,,answer,,,,,,,Rise/Run The rise over run that it takes to get from any point to another on a line/ simplified to 2/ Variable for Slope - ,,,,,,,,answer,,,,,,,M The M for any horizontal line is... - ,,,,,,,,answer,,,,,,,0 with a line through it x&y intercepts - ,,,,,,,,answer,,,,,,,The x intercepts is where the line passes through the x axis. and the y variable 0wline Visa versa Paralelle lines are - ,,,,,,,,answer,,,,,,,same slope Slope intercept form - ,,,,,,,,answer,,,,,,,Y=mx+b Dividing Fravf - ,,,,,,,,answer,,,,,,,your os - ,,,,,,,,answer,,,,,,,you llevar - ,,,,,,,,answer,,,,,,,to wear, to carry, bring Percent Increase or Decrease - ,,,,,,,,answer,,,,,,,- the difference of the original #and the new as the numerator and the original number as the denominator.
- Convert fraction to a decimal (Decimal moves left the number of places, and num is digits behind decimal.
- Convert dec to a percent Decimals to fractions - ,,,,,,,,answer,,,,,,,The denominator is dependent on unit placement. 0.4 (4 is in the 10s place) x/ The numerator is the digit indicating the number of times the unit is represented 4/ divide by gcf to reduce 4/10 divided by 2=2/ Literal Equations - ,,,,,,,,answer,,,,,,,An equation that has more than one variable and every v has a different characteristic. ab=c Solve for c Decimal to percent - ,,,,,,,,answer,,,,,,,Dividing a number by 100 moves the decimal two places to the left. 82%=82/100 therefor 82%=0. Congruent Figures - ,,,,,,,,answer,,,,,,,the shape is exactly equal in shape and size
