To find the volume of a cube you multiply the length of any side by its self twice <span />
(a)
Replacing x with x/3 and then multiplying both sides by x

The general term is

____________
(b)
Due to the powers present in the general term, use the ratio test

The series converges on x ∈ (-3,3)
Determining the interval of convergence, test the endpoints
For x = -3, general term becomes



Diverges at x = -3.
For x = -3, general term becomes

This is an alternate harmonic series, so it converges as the terms are decreasing in size (approaching zero as n approaches infinity)
The interval of convergence is
-3 < x ≤ 3
____________
(c)
We wrote all the terms above in part (a). The neglected term in the alternating series of f is

Thus
Answer:
B. 8:45
Step-by-step explanation:
One quarter of an hour is 15 minutes, meaning a quarter till nine is 15 minutes before nine, or 8:45.
I believe the numbers are 19 and 38
19 x 2= 38
38 - 12= 26
And 19 + 7 =26
or 26 - 7 =19