Answer:
80000/0.0004 = 2'000'000'000 or 2 x 10^-9
8*10^4 = 80'000
4*10^-5 = 0.00004
Step-by-step explanation:
Answer:

Step-by-step explanation:
we know that
The equation of the line in slope intercept form is equal to

where
m is the slope
b is the y-intercept
so
1) Find the slope of the given line 
The slope is 
2) Find the y-intercept of the given line 
The y-intercept is 
therefore
The equation of the line with


is equal to

Step-by-step explanation:
to be honest I'm not sure how to do
To find the dimensions you can just factor the equation...
x^2+4x-21
x^2-3x+7x-21
x(x-3)+7(x-3)
(x+7)(x-3) and this is equal to LW or WL
And note that x>3 for any possible solution.