Create a DFA to model a vending machine that accepts nickels, dimes, and quarters, and has 2 items for sale, costing 25 cents and 35 cents. Your DFA should take a sequence of inserted coins as input, and accept if you've put in the exact amount for either of the items.

What is one of the main problems that can occur when implementing a large number of new systems within an organization?

Working on this program in python 3.7: a year in the modern gregorian calendar consists of 365 days. in reality, the earth takes longer to rotate around the sun. to account for the difference in time, every 4 years, a leap year takes place. a leap year is when a year has 366 days: an extra day, february 29th. the requirements for a given year to be a leap year are: 1) the year must be divisible by 42) if the year is a century year (1700, 1800, the year must be evenly divisible by 400some example leap years are 1600, 1712, and 2016.write a program that takes in a year and determines whether that year is a leap year.ex: if the input is 1712, the output is: 1712 is a leap year. ex: if the input is 1913, the output is: 1913 is not a leap year. your program must define and call the function isleapyear(useryear). the function should return true if the input year is a leap year and false otherwise.

The place where the extended axis of the earth would touch the celestial sphere is called the celestial