Here is a number machine.
-3
→ output
(b) What is the input when the output is 11

Use the ratio test to determine whether ∑n=14∞n+2n! converges or diverges. (a) find the ratio of successive terms. write your answer as a fully simplified fraction. for n≥14, limn→∞∣∣∣an+1an∣∣∣=limn→∞.

Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it.find the area of the sidewalk.

Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?