ElectricPavlov

180 dgrees - 33 degrees - 104 degrees = 43 degrees = angle g   (and m)

The number of 3 mile 'sets' that he runs  is    24/3 = 8 'sets'   or 8 bottles of sports drink.

8 bottles  x  $1.25 / bottle = $10.00

She gets  .06 s   as a base.....this month 's' increases to 1.2 s    

.06(1.2s) = .072s

Sustitute x = 0 in to the equation to fin y axis intercept

4(0) + 5y = 20

y = 4      = y axis intercept

Sub y=0 for x axis intercept

4x +5(0) = 20

x =5     = x axis intercept

4x+5y =20        subtract 4x from both sides

5y = -4x + 20    Divide both side by 5

y = -4/5 x + 4    = y=mx+b slope intercept form

Substitute   x = 0  in to the equation for the y axis intercept

Sub             y=0                                            x axis intercept

re-arrange the equation into  y = mx+b    form for  slope intercept form.....

   OK?   Need more hints?

113/617  ?

y axis intercept happens when x= 0    substitute x= 0 in to the equation

   0 +y = 3      y= 3  is y axis intercept

x axis intercept is when y= 0

  x+ 0 = 3     x = 3  = x axis intercept

slope intercept form is y = mx + b       m= slope   b = intercept

x+y = 3

y = (-1)x + 3      is the slope intercept form

Add them all together and they should add up to 180 degrees

x + 2y  +  6x - 5y   +  5x +3y = 180

12x=180

x= 15

See previous answer.

http://web2.0calc.com/questions/optics-question

n= c/v

3x 10^8 m/s /  1.2 x 10^8 m/s  =  2.5   

        which is the approx refractive index of diamond(?)