Answer:
a8 = 0.004
Step-by-step explanation:
Q is abt a geometric series given by the eqn: an = a1*r^(n-1)
given a1 = 40000, r = 0.1
an = 40000*(0.1)^(n-1)
a8 = 40000*(0.1)^(8-1)
= 40000*(0.1)^7
= 0.004
length of big square
length of small square
difference between length of two square
=5.2-3.5
=1.7
Answer: 87.6719183867
Step-by-step explanation: