Step-by-step explanation:
in a geometric sequence there is a constant factor x that is multiplied with every previous term to create the next one.
a2 = 20
a5 = 1280 = a2×x×x×x = a2×x³ = 20x³
64 = x³
x = 4
=> a1 = 5
therefore
an = an-1×4 =

n > 1
Answer:
the answer is
, and -
which is C.
Step-by-step explanation:
well I got that answer by doing this
we have
= 5
For
= f (a) the solutions are x =
, - 
so in this case the solutions are
, and -
HOPE THIS HELPS :)
P - q i believe because
p = total average
q = average of ac
x = average of bd
p - q = x
Greater because a centimeter is smaller than an inch.