Answer: 62.8 yd
Step-by-step explanation:
Circumference= diameter*pi
20*3.14= 62.8
3n² - 8n + 4
3n² - 6n - 2n + 4
(3n - 2)(n - 2)
It's B, i just took the test... So :3
Let
be the
th partial sum of a geometric sequence with common ratio
and first term
. So the sequence is
, and
is
Multiplying both sides by
gives
and subtracting
from
gives
If
, then
as
and so the sum approaches