ElectricPavlov

2.17 times thicker would be a   117 % thicker

say it is   5 mil thickness      100% thicker would be 10 mil thickness   BUT it is twice as thick..... do you see?

Law of sines

sin A / a  = sin C / c       to find C          then you can find angle B    because B = 180 - A - C

1/8   +  1/20  + 1/X   =   1/4

x = ajay time  

Need more info.....

x = -2   -1   0

9x^2 +6x+ x^2 + 4x + ?

10x^2 +10x +?

10 *(x^2 +x)

10 (x+1/2)^2

10 ( x^2 + x + 1/4 )

10x^2 + 10x + 2.5          =   ( sqrt 10 x   + 1/2 sqrt(10) )^2 

g(x) =  7 x⁷  + a x⁵ .........         Degree 7 cancels the degree 7 in f(x)   and the a x⁵   makes the result of adding them degree 5      

Imaginary roots alwas come in pairs    a +- bi        so the other root would be   2 - 3i sqrt3

Srt the RATES equal and solve for 'x'

(x+5) / (x-1) = (x+11)/(x+2)       solve for 'x' (if possible )     Start by cross multiplying, simplify then use Quadratic FOrmula

              ..... Post if you need more help....

Then   speed in MPH  = (x+5)/(x-1)     or     (x+11)/(x+2)       <===== they should be the same for the Q

  Periods = 4 x 18 = 72

  interest per period  .05 / 4

1000 ( 1+ .05/4)⁷²      reperesents the money when she turns 18