(a)
Show that every integer p can be written in on of the forms
3n
P = 3n + 1
3n + 2
where ne Z
(b)
Using (a) above show that if p is divisible by 3, then p is divisible by 3.
(c)
Hence, show that 3 is irrational.​

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply