ElectricPavlov

Temp in city for weeks 1-4 =  Starting temp - (20 deg C / 4 wk) * wk#   

Temp in City for weeks 1-4 = starting temp - 5 deg c/wk  * wk#

This shows the temperature in the city for weeks 1 2 3 4  given the original temperature of the city and whichever week you want to know from the starting point....week 1   week 2   week 3   week 4 .....

Ooops.... forgot to log in (again) !      ~ EP

The x component will be given by

magnitude * cos (theta) = x component

so

Magnitude = (x component) / (cos theta)

165 degrees   magnitude   270    firnd the x and y components

x = 270 cos 165 =  - 260.8

y = 270 sin 165 = 69.9  

203 degrees magnitude 130   find the x and y components

x = 130 cos 203  =  -119.7    (edited)

y=  130 sin 203 =  -50.8        (edited)

Add the x components and the y components

x =- 260.8+-119.7 = -380.5

y = 69.9 - 50.8 = 19.1

d = sqrt (x^2 + y^2) = 381 km  from origin   bearing = arctan (y/x) = 177.1 degrees

I am not sure of waht you are asking, but:

5% of 320 -= .05 (320) = .05*320 = 16

or 

320 is 5% of  ?

.05x= 320

x = 320/.05 = 6400

Multiply first equation by 24

-48t +6s = 48      add it to the second equation

3t   - 6s = 9       to get

-45t = 57      divide both sides by -45

t = -57/45 = -1  12/45   =  -1 4/15     now substitute this value of t back into one of the two original equations and solve for 's'

From -6 to 15 is a distance of   21    2/3 of this is 14      -6 + 14 = 8 = x coordinate

For y   19 to -5   is  a distance of 24 (in the negative direction)  2/3 of 24 = 16  

           19 -16 = 3 = y coordinate   (it is 19 MINUS 16 because it is in the MINUS direction)

8,3

For the ORIGINAL function x = 4 is undefined...

Let's find the inverse funtion  f^-1     solve the original for x

y = (x-3)/(x-4)

yx -4y = x-3

-4y+3 = x - yx

(-4y+3) = x (1-y)

(-4y+3)/(1-y) = x       Now 'switch' the x's and y's

(-4x+3)/(1-x) =y       this is f^-1  and we can see that x cannot = 1    undefined at this value of  x

Do you know calculus?

You need the RATE of revenue growth.....this is the SLOPE of the revenue function at x = 20

The DERIVATIVE of the revenue funtion will give you the slope

the derivative is  R'(x) = 1000 - 40x       at x = 20     this equals 200 dollars/unit   (edited.....had wrong units )

    200 dollars/unit x 50 units/day = 10000/day     thank you

  Forgot to sign in    ~EP