# MATHS FORMULAS

Flashcards by Rylee Cruz, updated more than 1 year ago
 Created by Rylee Cruz over 4 years ago
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### Description

Flashcards on MATHS FORMULAS, created by Rylee Cruz on 06/03/2016.

## Resource summary

 Question Answer simple interest formula PRN = principal x rate x number (years) compound interest P(1+r/n)^nt = principal ( 1 +rate/times compounded per year)^ times compounded per year x how many years. depreciation formula p(1-r/n)^nt = principal (1- rate/ times depreciated per year)^times depreciated per year x how many years how to find net income gross income - allowable deductions how to find the slope of a line y=mx +b if a line is parallel to another line it has the same... x axis how do you tell if a line is perpendicular? minus the reciprocal of the x axis how do you find the equation of a line? rise /run x x , y intercept distance formula √(x2-x1)^2 + (y2-y1)^2 gradient formula y2-y1/x2-x1 midpoint formula x1+x2/2 , y1+y2/2 what is general form when the sum equals 0 instead of y circumference of a circle π x d area of a square b x h area of a rectangle l x b what's the Pythagorean theorem ? a2 + b2 = c2 rhombus b x h parallelogram b x h trapezoid (b+b) x h / 2 circle π x r^2 cyclinder surface area 2πrh + 2πr^2

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