ElectricPavlov

Q (t) = 5.27 (1+ .007)^t          .7%   in decimal form is   .007

^{Put in t = 9 and calculate the value of Q in 9 years........}

(x-2)(x+i)(x-i)(x -1+i)(x-1-i) =   polynomial 

    multiply all of this out to get:

x⁵ - 4x⁴ + 7x³ - 8x² +6x -4

f(t) = 200 000 (1 + .02)^t           Where t is in years

put in t = 3    and calculate the value in 3 years

P = 100 *  (1+ .02)^t        millions          Where t = # years after 2014

3 9 27 81    3^5 = 243

3^6 = 243*3 = 729

So the units digiit appears to cycle  in this roup of 4:      3   9   7   1       3  9  7  1  

2086/4 = 2086/4 = 521  R 2          so units digit will be   9

(1 - .12)^5 = .88^5 = 0.5277319168     this is the ending percentage of original 100%

    it goes down to the ending percentage

1 - .5277 = -0.5277319168+1 = 0.4722680832        it is down 47.23 %

town A population  47750 - 125m + 200m

town B population  50000 - 175m

Equate the towns' populations , then solve for 'm'

47750 - 125m+200m = 50000-175m               Answer A

 Now solve for 'm'......

Find slope, m, between the two given points

(y1-y2)/ (x1-x2) = (7-5)/(-2 - 3) = -2/5

Perpindicular slope m of the new line = -1/m = 5/2

Line through 2,28 with this new slope =

(y-28) = 5/2 ( x-2)

(3/5)^3+8(1.15)^2+1.08^4 = 12.15648896     

                                           by pasting into Web2.0 calculator

Area of triangle = 1/2 b*h =   1/2 (11)(5)     cm²

Area of Rectangle below triangle =  5 * 11   cm²

Area of rectangular base = 15 * 3  cm²

Add these toogher.... then multiply by the depth (shown as 7 cm) to get your answer in cm³