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April 29, 2026, 06:39:49 am
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Author Topic: more questions!  (Read 2515 times)  Share 

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mangmang712

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more questions!
« on: April 08, 2009, 02:06:59 pm »
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Is stuck on this question:



thanks in advance .. will probably be posting more soon  :uglystupid2:
« Last Edit: April 08, 2009, 02:16:06 pm by mangmang712 »
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TrueTears

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Re: more questions!
« Reply #1 on: April 08, 2009, 02:09:57 pm »
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You have to use calculator to solve that, and it will only yield an approximated answer (decimal)

EDIT: better to use nSolve(...) if you are using TI-89
« Last Edit: April 08, 2009, 02:16:23 pm by TrueTears »
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mangmang712

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Re: more questions!
« Reply #2 on: April 08, 2009, 02:13:19 pm »
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no its meant to be: 10 to the power of -0.3x

sorry
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mangmang712

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Re: more questions!
« Reply #3 on: April 08, 2009, 02:19:00 pm »
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is this right so far:




.. if i was to solve algebraically before referring to the calc
« Last Edit: April 08, 2009, 02:21:02 pm by mangmang712 »
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TrueTears

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Re: more questions!
« Reply #4 on: April 08, 2009, 02:27:27 pm »
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I meant you can't solve it algebraically this question no matter what, ie You can't get an exact answer, there isn't one. You have to use calculator.
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mangmang712

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Re: more questions!
« Reply #5 on: April 08, 2009, 02:31:24 pm »
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and also this question; if and find if:
 
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mangmang712

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Re: more questions!
« Reply #6 on: April 08, 2009, 02:33:53 pm »
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thanks truetears .. sorry about the confusion. i was also struggling with latex  :-[
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TrueTears

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Re: more questions!
« Reply #7 on: April 08, 2009, 02:34:40 pm »
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Quote from: mangmang712 on April 08, 2009, 02:33:53 pm
thanks truetears .. sorry about the confusion. i was also struggling with latex  :-[

No problems XD
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NE2000

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Re: more questions!
« Reply #8 on: April 08, 2009, 02:44:21 pm »
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Quote from: mangmang712 on April 08, 2009, 02:31:24 pm
and also this question; if and find if:
 

What's the question want you to find??

EDIT: sorry, didn't read properly
« Last Edit: April 09, 2009, 10:35:21 am by NE2000 »
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2009: English, Specialist Math, Mathematical Methods, Chemistry, Physics

mangmang712

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Re: more questions!
« Reply #9 on: April 08, 2009, 02:47:27 pm »
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im not sure what u mean... i need to find if using the information provided
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mangmang712

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Re: more questions!
« Reply #10 on: April 08, 2009, 02:48:53 pm »
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thats all the info that is given. its in the 'essentials' textbook, chpt 9K, Q5(b) if that helps
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TrueTears

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Re: more questions!
« Reply #11 on: April 08, 2009, 02:57:11 pm »
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(Using the quotient rule)

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mangmang712

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Re: more questions!
« Reply #12 on: April 08, 2009, 03:00:00 pm »
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Thanks heaps!! :)
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NE2000

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Re: more questions!
« Reply #13 on: April 09, 2009, 10:35:42 am »
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Quote from: mangmang712 on April 08, 2009, 02:47:27 pm
im not sure what u mean... i need to find if using the information provided

sorry, didn't read the question properly
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mangmang712

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Re: more questions!
« Reply #14 on: April 09, 2009, 04:21:48 pm »
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Quote from: NE2000 on April 09, 2009, 10:35:42 am
Quote from: mangmang712 on April 08, 2009, 02:47:27 pm
im not sure what u mean... i need to find if using the information provided

sorry, didn't read the question properly

thats ok :) ... its a confusing question!
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