Math Is Fun Forum
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#676 2014-10-21 04:14:47
- EbenezerSon
- Member
- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
Wow!
I confronted a math tutor - but he claimed the answer 1/3 or -1/3 is correct - now I Could realise that your method is good. Please I want the tutor to see for himself your steps because he was insisting that the books' answer is correct
Thanks bobbym
I know only one thing - that is that I know nothing
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#677 2014-10-21 04:18:14
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
Is it logs to the base 10? The common log?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#678 2014-10-21 04:27:00
- EbenezerSon
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- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
The book says - if the base is not written then it is base 10. And with this problem the base is not written - so it used base 10
I know only one thing - that is that I know nothing
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#679 2014-10-21 04:32:13
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
Ask the tutor to plug and check his answer.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#680 2014-10-21 04:54:01
- EbenezerSon
- Member
- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
I am away from the tutor now - but I shall tell him later
I know only one thing - that is that I know nothing
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#681 2014-10-21 05:09:30
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
Yes, I am very interested in his answer.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#682 2014-10-25 03:46:52
- EbenezerSon
- Member
- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
Still I haven't come across the tutor - but I will definitely meet him.
My one question is - when do one take antilogs of both sides of an equation?
I know only one thing - that is that I know nothing
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#683 2014-10-25 03:55:34
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
I would say when doing it is easy and helps with the simplification of the equation. Generally, I do the simpler stuff first like addition and subtraction of like terms.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#684 2014-10-25 04:03:01
- EbenezerSon
- Member
- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
I think your methods are good concerning the simplification of like terms in logs. Thanks for answering.
Look it if it is good
log16^-x = log2 + log7
-xlog16 = log14
x= -log14/log16
Is it good?
I know only one thing - that is that I know nothing
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#685 2014-10-25 04:09:02
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
Hi;
I am getting that too.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#686 2014-10-25 04:17:20
- EbenezerSon
- Member
- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
Thanks! Bobbym
I am now getting logarithm better.
See;
solve for x in, log16^x.
log16^x = 10
xlog16 = log10
x = log10/log16
correct?
I know only one thing - that is that I know nothing
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#687 2014-10-25 04:22:40
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
Hi;
That is not correct, work on line 2.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#688 2014-10-25 04:26:23
- EbenezerSon
- Member
- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
xlog16 = log10
xlog16 = 1
x = 1/log16
Correct?
I know only one thing - that is that I know nothing
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#689 2014-10-25 04:27:37
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
Is this xlog16 = log10 the original problem?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#690 2014-10-25 04:30:52
- EbenezerSon
- Member
- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
No, the original is log16^x.
I know only one thing - that is that I know nothing
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#691 2014-10-25 04:42:43
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
log16^x = 10
Do the operation on the left.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#692 2014-10-25 04:47:55
- EbenezerSon
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- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
like this;
xlog16 = 10
I know only one thing - that is that I know nothing
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#693 2014-10-25 04:52:08
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
That looks right.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#694 2014-10-25 04:56:05
- EbenezerSon
- Member
- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
Again;
x = 10/log16
correct?
I know only one thing - that is that I know nothing
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#695 2014-10-25 04:57:55
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
That is correct.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#696 2014-10-25 05:04:27
- EbenezerSon
- Member
- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
Good!
Thanks bobym - I will post problems.
Big thanks!
I know only one thing - that is that I know nothing
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#697 2014-10-25 05:05:48
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
I am going to take a little break to have some panko breaded chicken. See you in a bit.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#698 2014-10-25 05:46:49
- EbenezerSon
- Member
- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
Ok. Let me put this
Log(x-3) - logx = 2.
Is negative one (-1) the correct answer?
I know only one thing - that is that I know nothing
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#699 2014-10-25 06:16:10
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Simplify the following:
Hi;
Did you plug that answer in to check it?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#700 2014-10-25 21:27:08
- EbenezerSon
- Member
- Registered: 2013-07-04
- Posts: 554
Re: Simplify the following:
I have plug it in and the calculator gave me "math error". But I want to add that the base is five [5] for all.
Last edited by EbenezerSon (2014-10-25 21:34:30)
I know only one thing - that is that I know nothing
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