The objective here is to find
(so called common ratio):
So assuming the first element of sequence is 3 (as you mentioned) we now can define the recursive rule for this geometric sequence:
I attached a photo of the work below :-)
Area of a trapezoid= [(a+b)÷2]h
1,224 in²= [(65.5 in+70.5in)÷2]h
1,224in²= (136÷2)h
1,224 in²= 68h
(1,224 in²÷68)= 68h÷68 (elimination)
h= 18 inches
Not sure why, but I wasn't able to post my solution as text, so I've written it elsewhere and am posting screenshots of it here.
In the fifth attachment, the first solution is shown above the second one.
Answer:
you multiply the -6 by whats in the parenthesis. so it would be -54, and 54n. Because two negatives make a positive
Hope this helped!
Step-by-step explanation:
