If you travel 300miles in 5h then you travelled 60miles per hour.
Hence in 7h you can travel 7*60=420miles
Yes I do agree but that is he d dit-on
The equation of a circle with center at (h,k) and radius r is

we are given
center is at (3,2)

solving for y



take the derivitive to find the slope at any point

we can use point slope form
for apoint (h,k) and slope m, the equation is
y-k=m(x-h)
not sure if you want in terms of what
I'll just say for a point (h,k)
so we get

where

that's the equation of the tangent line at (h,k) for arbitrary values of r
do the plots and other stuff yourself
Answer:
± 8i
Step-by-step explanation:
note that
= i
using the rule of radicals
•
×
⇔
, hence

= ± 
= ±
×
= ± 8i