Answer:
EF=3.6
Step-by-step explanation:
I'm going to use Pythagorean Theorem for side EF.
4.8^2+EF^2=6^2
23.04+EF^2=36
-23.04 -23.04
EF^2=12.96
sqrt sqrt
EF=3.6
The first four-term of the sequence is found by the given equation
is given as 144, 36, 9, and 9/4.
<h3>What is a sequence?</h3>
A sequence is a list of elements that have been ordered in a sequential manner, such that members come either before or after.
The given equation will be

And

For n = 4, we have

For n = 3, we have

For n = 2, we have

More about the sequence link is given below.
brainly.com/question/21961097
The unit rate would be 3 trucks per 1 hour you can find this by dividing 18 and 6 by 6