I believe the answer is D. because -12 + -1 equal -13
I think
A. convert the time to seconds, so all the time are 7070sec and the total course to meter.
so 31300meter
Vector = TotalCourse÷total time
V=31300/7070=4.427157m/s
convert it to km/h so 4.427157×36÷10=
15.9377km/h
B. 45÷15.9377=2.823Hour
it means that around 2 Hour 48Minutes more.
i think the teacher need to simplify it
Answer:
=14
Step-by-step explanation:
Answer:
7581, sorry if wrong
Step-by-step explanation:
9.5 times 9.5 = 90.25
90.25 times 12 = 1083
1083 times 7 = 7581