#ATTENDANCE QUIZ FOR LECTURE 2 of Dr. Z.'s Math454(02) Rutgers University

# Please Edit this .txt page with Answers

#Email  ShaloshBEkhad@gmail.com 
#Subject: p2
#with an attachment called
#p2FirstLast.txt
#(e.g. p2DoronZeilberger.txt)

#Right after finishing watching the Second lecture but no later than Friday, Sept. 11, 2020, 8:00pm




Q1. THE FIRST ATTENDANCE QUESTION WAS:
#Let a:= FIRST DIGIT of your RUID 1
#Let b:= SECOND DIGIT of your RUID 7
#Let c:= FIFTH DIGIT of your RUID 0
#Let d:= SIXTH DIGIT of your RUID 3

HOW MANY WALKS IN MANHATTAN ARE THERE (NOT USING BDWAY)
#From CORNER of min(a,b) St an min(c,d) Ave
#to	"	max(a,b) St. and max(c,d) Ave
#Walking in the positive direction
 F(m,n) = (m+n)! /(m!*n!)

A1. MY ANSWER TO THE FIRST ATTENDANCE QUESTION IS:
South: S
East: E
how many ways can we rearrange SEEEE (must walk one step south and four steps east)
5! / (4!) = 5
so there are 5 ways



Q2. THE  SECOND ATTENDANCE QUESTION WAS:

#CONSIDER YOUR RUID AS A WORD OF LENGTH 9 in
#THE 10-letter "ALPHABET' {0,1,2,...,9}
#HOW MANY WAYS TO REARRANGE YOUR RUID

A2. MY ANSWER TO THE  SECOND ATTENDANCE QUESTION IS:

RUID: 178003829

9!/(2!2!)=90720