Kranthi

For strings of length 6 which contain letters from the set {A, B, C, D, E} and digits from {3, 4, 5, 6, 7}. For example B4D3EA is such a string. Suppose repetition is allowed.

(a) How many different strings are there?

(b) How many of these strings have no A?

(c) How many of these strings have at least one A?

(d) How many of these strings have exactly two A's and one 6?

Suppose repetition is not allowed

(e) How many different strings are there?

(f) How many different strings are there if the letters i.e. A, B, C, D, E and the digits i.e. 3, 4, 5, 6, 7 must alternate?

(g) How many different strings are there if all five letters must be adjacent in each string?

What compounds is MOST likely to react as a nucleophile in an SN2-type reaction?

(1) H2O

(2) CH3Cl

(3) PhS-

(4) CH3COOH

If possible, an explanation would be great!

Thank you!

I have a choice on which to study for my final exams. Can you'll tell me which one is easier??

Thanks!! :) :)

I want the tabs for full moon by THe Black Ghosts

I have looked everywhere (911 tabs, ultimate guitar, guitarmasta, etc.) but I cannot find the proper, or a good, version of the tabs

If you know how to play this song PLEASE EMAIL ME

My brother found a video on youtube of this song and the tabs but we lost the link, (long story) and now we cant find it again

PLS PLS PLS PLS PLS PLS PLS PLS PLS!!!!!!!!!!!!!!! :) :) :)

Thanks for your help =)

P.S. If your in to the guitar then we can talk and exchange tabs, I'm far from an expert though. =P

Where can I get the AS level "Physical Science" (8780) syllabus for 2010. I have gone to the cie website but it is not there anymore, although there is a syllabus for 2011 and 2012. (http://www.cie.org.uk/qualifications/academic/uppe...

Thank you for your help!! =)

thank you for your help! =)

thanks for the help! =)

Please explain simply what coplanar vectors are.

Thanks for all the help!

=)

Separate facts from opinions in these statements:

1. Home schooling is better than government schooling.

2. Beethoven was the greatest composer of all time.

3. The United States has the world's most extensive road system.

4. Operation Hunger, formed in 1981, runs feeding schemes and self-

help programmes for needy people in South Africa.

5. At the age of six, children usually learn to classify objects and put them in order.

6. Censorship of violent T.V. programmes will reduce violent behaviour amongst adolescents.

7. Every individual has the right to complete freedom of speech.

8. Fifty-four per cent of the world's timber is used as fuel.

9. The average adult man has between 40-42 litres of water in his body.

10. Gymnastics is the most challenging of all the sports.

Thnx for your help! =)

a composition is a short essay right?

thnx for all the help! =)

I need your input as well as some links if you can please.

I have been researching this and havent found a good site that tells me ways (excluding conservation projects) in which wild dog populations are being managed to prevent their extinction. thanks for all the help! =)

PS i dont mind ANY site that you can refer to me. thanks again! =)

thanks! =)

we have always named our dogs after native american names or tribes, eg. apache, cheyenne, missouri. please give me good names for a female.

thanks! =)

thanks for all the help. =)

For cars its nitrogen oxide and carbon monoxide, right?

note that this has got to do with AIR pollution.

thanks for all the help. =)

I need a hindi, religious dance song. I dont mind if it is classical or slow. Thanks for all the help. =)

thanks for the help. =)

having pride when you lose and putting up a smile =D

not taking steroids and playing fair..

and??

thanks in advance. =)

thanks.

pls. i already tried beemp3.

thank you.

=)