If the fifth term in a geometric sequence is 1∕27 and the common ratio is 1∕3, find the explicit formula of the sequence.

Explicit formula will be

Step-by-step explanation:

Explicit formula for a geometric sequence is given by the formula,

Here is the nth term of the sequence

a = first term of the sequence

n = number of term

Since 5th term of a geometric sequence is

=

First term of the sequence 'a'=

By substituting these values in the explicit formula,

a =

a =

a = 3

Therefore, explicit formula of this sequence will be,

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)