- HSN forum
- → jambo david's Content

## jambo david's Content

There have been 42 items by jambo david (Search limited from 27-January 21)

### #73203 AI NAB

Posted by jambo david on 29 March 2006 - 08:42 PM in Computing

HELP PLEASE!!!

### #73145 Log questions - Help

Posted by jambo david on 28 March 2006 - 07:55 PM in Mathematics

Ah, in that case, you use the laws of logarithms to simplify the expression:

Bear with me, I need to work on this a bit. Is the base 10 or something else (if one is given)?

Edit: If no bases are given, I'll assume the answer is:

the base isn't given

i really appreciate the help

### #73143 Log questions - Help

Posted by jambo david on 28 March 2006 - 07:46 PM in Mathematics

1. Given that log10^k=2.3, write down an expression for the exact value of k

2. Solve e^3x=15

Cheers

I'm a bit unclear on the first question. Is it asking you to find or ?

To find the answer for question two, you take logs of both side using the natural logarithm.

Use the laws of logarithms with powers to get:

ln(e) cancels to get 1 so

In reply to SncZ, my answer would be sufficient, it's not that necessary to use a calculator, you can express it in simplified form like this, unless it specifically asks for the value to a number of decimal places.

question 1 is Log10^k=2.3

the 10 is big if you know what i mean, normal sized

### #73136 Log questions - Help

Posted by jambo david on 28 March 2006 - 07:15 PM in Mathematics

2. Solve e^3x=15

Cheers

### #73004 The Great Gatsby - Sample Essay

Posted by jambo david on 27 March 2006 - 02:58 PM in English

### #72961 The Great Gatsby - Sample Essay

Posted by jambo david on 26 March 2006 - 07:02 PM in English

Cheers

### #66588 Worked solutions

Posted by jambo david on 26 January 2006 - 06:42 PM in Physics

sorry if it's too late but http://www.mathsrevision.com/index_files/Page1012.htm

### #65893 Forming alkalis

Posted by jambo david on 18 January 2006 - 02:02 PM in Chemistry

### #65892 Forming alkalis

Posted by jambo david on 18 January 2006 - 02:01 PM in Chemistry

Quiestion 2 in past paper 2001 says

Which gas would issolve in water to form an alkali?

A HBr

B NH3

C CO2

D CH4

Answer in B NH3

Can someone explain this please?

### #65721 Worked solutions

Posted by jambo david on 16 January 2006 - 06:35 PM in Physics

Pushin my luck?

### #65720 Worked solutions

Posted by jambo david on 16 January 2006 - 06:26 PM in Physics

### #65709 Worked solutions

Posted by jambo david on 16 January 2006 - 04:53 PM in Physics

### #65708 2002 Past Paper Q22ci

Posted by jambo david on 16 January 2006 - 04:52 PM in Physics

I tried using p=f/a but there is no area given that i can see.

### #65671 2003 paper 2, question 8

Posted by jambo david on 15 January 2006 - 09:29 PM in Problem Questions

### #65663 2003 paper 2, question 8

Posted by jambo david on 15 January 2006 - 08:29 PM in Problem Questions

### #65659 Paper 1 2004, Question 7

Posted by jambo david on 15 January 2006 - 06:34 PM in Problem Questions

I have attached a document which shows you the relevant way to start the problem, and I should just note that you wouldn't be given this formula in your exam.

If you require a bit more help in getting to the answer, as it is quite tricky, just put up another post!

Good luck!!

Cheers very much, i was very confused, turns out i haven't done it yet so it won't be in my prelim tomorrow. I think i should be ok now

### #65623 Paper 1 2004, Question 7

Posted by jambo david on 14 January 2006 - 10:34 PM in Problem Questions

I'm sure it's something simple but i just don't understand where the 4 came from

- HSN forum
- → jambo david's Content