<span>Pi/4 is the answer
Because sin(Pi/2)=1 and arctan (1)=Pi/4</span>
We know that
<span>[average speed]=distance/time
distance=59+70-----> 129 km
time=4+5----> 9 hours
</span>
[average speed]=129/9----------> 14.33 km/hour
The lower quartile is the median of the lower part of the data.
Answer:
(1,3) hope it helps you good luck
Step-by-step explanation:
I’m going to say pre-algebra because that’s when I learned it in my school system but you may also learn it in algebra as well, College ready math can start in 8th grade math but I would think it would be in highschool.
