(7-2)2=5*2=10
or
(7-2)2=7*2-2*2=14-4=10
In order to arrive at the answer, take the total (251) and subract it by 148. J = 103
The next terms in the sequence will be multiplied by c, but the common ratio is still the same
example :
S = [1(3)^4 - 1]/ [3-1] = 80/2 - 40
Hope this helps
Use a calculator called symbolab.com
Cos=(adjacent/hypotenuse)
So the answer will be cos(16/20) or cos(4/5) both will give u the same answer
I hope it helps
