quiz8ANS - dierent kinds (that is, there are no pairs among...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Math 240, Quiz 8 Name: Circle One: T 12:05 T 2:25 R 12:05 R 2:25 Instructions: Answer all questions fully, showing work where necessary. 1) What is the coeFcient of x 8 y 9 in the expansion of (3 x + 2 y ) 17 ? It’ll be ( 17 8 ) 3 8 2 9 2) How many solutions are there to the equation x 1 + x 2 + x 3 + x 4 + x 5 + x 6 = 29 where x i , i = 1 , 2 , 3 , 4 , 5 , 6, is a nonnegative integer such that x i > 1 for i = 1 , 2 , 3 , 4 , 5 , 6? If each x i is at least 2, we can subtract 12 stars from the 29 we have to place. Thus, we will only have 17 stars and 5 bars to place. The answer will thus be ( 22 5 ) . 3) What is the probability that a ±ve-card poker hand contains cards of ±ve
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: dierent kinds (that is, there are no pairs among the ve cards)? There are 13 dierent kinds of cards, 2 through Ace. Out of those 13, we must choose 5. or each of these 5 cards, there are 4 suits, and we must choose one. Thus, the probability is ( 13 5 )( 4 1 ) 5 ( 52 5 ) I messed up and rewrote the same bonus question. The answer is again Alando Tucker. 1...
View Full Document

This note was uploaded on 08/11/2008 for the course MATH 240 taught by Professor Miller during the Fall '08 term at Wisconsin.

Ask a homework question - tutors are online