-4,6) (8,-12)
square root of 12^2+-18^2
<span>square root of 144+324
</span><span>square root of 468
21.63
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The area of the door is 16ft (4x4) and the window is 900 (30x30) then do 900/16= 56.25 I hope I'm right!
The average rate of a function f(x) over an interval x = a and x = b is given by:

Given the function

The average rate of change from x = 1 to x = 2 is given by:
A=168 ft²
that's the answer hope it helped!<span>
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