Answer:
5-8i
Step-by-step explanation:
-7-6i and -12+2i
Treat it as a polynomial. We all know that i=square root of -1, but in this case, treat it as a polynomial.
-12+5=-7
2i-8i=6i
So 5-8i
the answer is 4.2 and i check if the answer is correct
and it was correct
The answer is 9.77 hope this helps
Speed=distance/time
suppose the distance of the first day is d, and the time is t
distance of the second day: d+0.17d=1.17d
time of the second day: t+0.2t=1.2t
speed of the second day: 1.17d/1.2t=0.975(d/t)=(1-0.025)(d/t)
so the speed of the second day is 2.5% slower than the first day.
