Homework Help - October 2006

2006-10-01 10:08:23 · 7 answers · asked by curious0404 1

2006-10-01 10:05:03 · 14 answers · asked by bellarinia 2

I would also like to know why did the creator create it and how it was created.

2006-10-01 10:00:39 · 2 answers · asked by soniaaktar335 1

2006-10-01 10:00:17 · 3 answers · asked by Anonymous

Any one know of any? I dont want someone too famous, because everyone in my class is doing this and i dont want to end up with the same person as someone else. Really, they dont have to be famous i guess, just really interesting and cool, fun to learn about.

2006-10-01 09:55:52 · 2 answers · asked by Anonymous

Give a direct proof.
Let x be an integer. If 11x-5 is odd, then x is even.

Asuume 11x-5 is odd
11x-5= (2k+1)
so, x= 2k+1
11(2k+1)-5
22k+1-5 = 22k-4
Since 22k-4 is an integer 11x-5 is odd

Give an indirect proof.
Assume that x is odd. Then 2k+1 for some integer k
so, 11x-5= 11(2k+1)-5 = ? I am a bit confused with this one.


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Let x be an integer. Prove that 5x-11 is even if and only if x is odd.
Direct proof: Assume x is odd, then x=2k+1, for some integer k
so, 5(2k+1)-11 = 10k+5-11 = 10k-6= 2(5k-3)
Since (5k-3) is an integer, 5x-11 is even.

Assume x is even. Then x= 2l, for some integer l . Therefore, 5(2l)-11= 10l-11=
10l-12+1= 2(5l-6)+1
Since 5l-6 is an integer, 5x-11 is odd.
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Let x be an integer. Prove that x^3 is even if and only if x is even.

Proof: Assume that x is even. Then x=2k for some integer k.
Therefore, x^3=(2k)^3 = 8k^3= 2(4k^3)
Because 4k^3 is an integer, then integer k^3 is even.

For the Converse, assume x is odd. x=(2l+1), for some integer l.
x^3= (2l+1)^3= (2l+1)(2l+1)(2l+1)= 8l^3+12l^2+6l+1= 2(4l^3+6l^2+3l)+1
since (4l^3+6l^2+3l) is an integer, x^3 is even

2006-10-01 09:54:06 · 5 answers · asked by Shivers20 2

2006-10-01 09:53:15 · 3 answers · asked by shay j 1

2006-10-01 09:49:25 · 3 answers · asked by Johnny and Amy H 1

Could u also tell me the source u got it from also thanks

2006-10-01 09:49:21 · 4 answers · asked by Anonymous

I also need to ask... Where does the Susquehanna River touch? Where does the Susquehanna River begin?

2006-10-01 09:48:40 · 2 answers · asked by MiSS Sarah 26 1

for a school project

2006-10-01 09:47:39 · 4 answers · asked by Anonymous

Please answer this as soon as possible. Thank you!!!

2006-10-01 09:42:37 · 13 answers · asked by Person 2

CH4+2 O2 --->CO2 +2 H2O

A) 21.1g
B)32.4g
C)13.7g
D)5.27g
E)16.2g
Can anyone show me how itz done?

2006-10-01 09:34:44 · 1 answers · asked by Anonymous

Burton High School has 1,500 students. During first period, a rumor is started when Susan tells three friends a secret. Each of Susan's three friends tell three of their friends during second period, who in turn tell three different friends during third period. Assume each person tells the rumor to only three others.

Find the number of students who have heard the rumor at the end of the day. (Burton has 6 periods.)

2006-10-01 09:32:09 · 3 answers · asked by dorkified at heart 1

2006-10-01 09:25:43 · 7 answers · asked by Stengi 1

what are some railroad disadvantages in the 19th-20th century?

2006-10-01 09:12:53 · 4 answers · asked by Anonymous

2006-10-01 09:12:41 · 12 answers · asked by amber c 1

inadvertently,vie,deluge,feigns,perplexed) still,maria knew that she and her chilhod friend had------grown apart over time..

2006-10-01 09:11:49 · 4 answers · asked by beauty mirna 3

-you can only use each number once
-you can use exponents
-you can use square roots
-you can put 2 numbers together to form 1 number
-you can use parenthesis and brackets
but each expression can only include the numbers 1-2-3 and 4

2006-10-01 09:09:14 · 2 answers · asked by Anonymous

2006-10-01 09:08:04 · 3 answers · asked by adk423 1

(notice: I said battle insted of war this time)

2006-10-01 09:05:57 · 6 answers · asked by Josh 2

Maria knew she was right, but she was tired of jordan's efforts to ___________ for her frienship.

(inadvertently, perplexed,feigns,deluge,vie,immerce)

2006-10-01 09:05:22 · 11 answers · asked by hey 3

2006-10-01 09:05:06 · 2 answers · asked by k.s bby <3 1

In an attempt to discredit the President, a member of the opposite political party wishes to start a scandalous rumor about him. He plans to tell people this rumor one week before election day and wants the entire population of the United States (that's 250,000,000 people!) to know the rumor. He needs to figure out how many people he should tell (and they each will tell the same number of people) so that everyone will have heard the rumor by the seventh day.


(b) Find the number of people the evil politician needs to tell so everyone in the United States will have heard the rumor by the seventh day. Remember: each person needs to tell the same number of people.

2006-10-01 09:03:27 · 2 answers · asked by dorkified at heart 1

2006-10-01 09:00:49 · 4 answers · asked by adk423 1

i am stumped i also need to square it to but i dont get how to factor it

2006-10-01 09:00:08 · 3 answers · asked by anya831 1

Length
1 mile= __ kilometer 1 yard= __ meter 1 foot= __ meter
1 inch= __ centimeters
Volume
1 gallon= __ liters 1 quart= __ liter
Weight
1 pound= __ kilogram 1 ounce= __ grams
Length
1 kilometer= __ mile 1 meter= __ yards 1 meter= __ feet
1 centimeter= __ inch
Volume
1 liter= __ gallon 1 liter= __ quarts
Weight
1 kilgram= __ pounds 1 grams= __ ounce

2006-10-01 08:54:52 · 5 answers · asked by Anonymous

2006-10-01 08:53:47 · 3 answers · asked by Marco H 1

Yes I am the same person who asked how long it lasted but this is one of my last questions!

2006-10-01 08:51:50 · 5 answers · asked by Josh 2

When stating the name of a(n) magazine, newspaper, article, or book in which evidence for an essay is found, do you italicize or quote the title? Or do you do both?? I've never quite figured it out, so I was hoping Yahoo! Answers can help. =)

2006-10-01 08:51:14 · 4 answers · asked by .Cami.B. 2