Ms. Masso's 8s




FORMULAS



I. AREA                a. Parallelogram               A = bh

                             b. Rectangle                    A = lw

                             c. Square                        A = s2

                             d. Trapezoid                  A = 1/2 h(b1 + b2)

                             e. Triangle                       A = 1/2 bh

 

II. AVERAGE SPEED              r = d/t

 

III. CONVERTING TEMPERATURE

                   a. Celsius to Fahrenheit             F = 9/5C + 32

                   b. Fahrenheit to Celsius             C = 5/9(F – 32)

 

IV. DISTANCE FORMULA

                      between (x1 , y1) and (x2 ,y2)

 

V. LENGTH of PENDULUM

                                              

 

VI. MIDPOINT         between (x1 , y1) and (x2 ,y2)

 

 

VII. PERIMETER             a.   Rectangle P=2l + 2w

b.     All other shapes, add the measures of the sides

 

 

VIII  PROBABILITY        P( event) =

 

IX  QUADRATIC  FORMULA    If ax2 + bx + c = 0,  and a  0

                         x. = 

 

X.  SIMPLE  INTEREST                 I = prt

 

XI.  SPEED, TIME, DISTANCE              d = rt

 

XII.  VERTICAL MOTION          h = -16t2 + vt + s

 

XIII.        VOLUME

                           a. Cone                 V = 1/3r2h

                           b. Cube                 V = e3

                           c. Cylinder            V =

                           d. Pyramid            V =  1/3Bh   (B = area of the base)

                           e. Rectangular Prism        V = lwh

                           f. Sphere               V = 4/3

 

Right Triangle Functions

 

PYTHAGOREAN THEOREM           c2 = a2 + b2

 

TRIGONOMETRY                sin A =

                                              cos A =

                                              tan  A =