Answer:
5.25, 5/14, or 21/4 hours
Step-by-step explanation:
400 700
------ = ------
3 x
A= a slope of 4
B= a slope of 5
C= a slope of 3
Note: All are positive slopes
If <em>z</em> ⁷ = 128<em>i</em>, then there are 7 complex numbers <em>z</em> that satisfy this equation.
(where <em>n</em> = 0, 1, 2, …, 6)
11 degrees
-2+13=11