Answer:
9-2i
Step-by-step explanation:
(1 + 2i) * (1 - 4i)
(1*1)-(1*4i)+(2i*1)-(2i)*(4i)
(1)-(4i)+(2i)-(8i^2)
i^2 = -1
1-4i+2i+8
1-2i+8
9-2i
Answer:
13 hours
Step-by-step explanation:
At the same rate of speed, Hong can expect to take 936/576 times the time in order to drive 936/576 times the distance.
... (936/576)·8 hours = 13 hours
The answer is (2, 7), because the midpoint is the point where the 2 end points are equidistant from each other
