Question

Find the 6th term of the sequence which has a first term of 72 and has a common ratio of 0.5 round your answer to the nearest hundredth if necessary

Answer 1

Xn = ar^(n-1)
n = term to find = 6
a = 1st term = 72
r = common ratio = 0.5
now we sub
x6 = 72 * 0.5^(6-1)
x6 = 72 * 0.5^5
x6 = 72 * 0.03125
x6 = 2.25 <===