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+118725

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You have to take the log of both sides and the use log rules to simplify it.
i had written out a long answer but I lost it - my computer playsed up.

This interactive web page may help you understand logs better
http://www.mathsisfun.com/algebra/logarithms.html

also rules on manipulating logs are listed here
http://en.wikipedia.org/wiki/List_of_logarithmic_identities

MelodyNov 14, 2013

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By the way I'm
the tuffest kid in skool and I now some bad wurds don't mess wit me

GuestNov 14, 2013

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I think it is pooopy cus math is for poopy heds

GuestNov 14, 2013

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Wat r thuse upsoide down carrot it is reterded by the way I think the answer is 12 becus that is huw old my sooper kool fat brother is....... YUU R WELCUM FUR HELPONG YOU

GuestNov 14, 2013

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I think it is -1/13 I am just now learning this and I figure helping out others is better than doing my homework, homie! ~totalsoccermom69

GuestNov 14, 2013

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U r relly fat and u make my la vagine sad andd by Thu way the answer to questen 1 is 15 because acordeng to scentific mathotonic sens the number doubles by 2 before ading a number, so yur welcum ferr helpin yu out

GuestNov 14, 2013

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I tink it mey be 100 becus it hes 3 diget numbr

GuestNov 14, 2013

+118725

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log base3 x^1/2 - long base3 y^2 - log base3 z^4?

0.5 * log ₃ (x / (y^4*z^8))

MelodyNov 14, 2013

+118725

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solve the equation

1.2X = 72

MelodyNov 14, 2013

+118725

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Solve the given nonlinear system by the addition method.
4x^2-2y^2=-2
x^2+4y^2=40

I'd do them as simultaneous equations solving by elimination method
multiply the 1st one by 2
add it to your second equation
You get
9x^2 = 36
solve
x=+-2
put each of these back into an original equation to get hte possible y values.

MelodyNov 14, 2013

+118725

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what is sin c=1/n
n=1.34

it is an inverse sine or arcsine question
make sure your calc is set to degrees - there is probably a little D at the top of the screen.
then...

shift sin (1/1.34) =
ans is 48.268....
press the degrees minutes and seconds button and you get 48degrees 16minutes and 5.46seconds.

MelodyNov 14, 2013

Nov 13, 2013

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A percent is just like a fraction: 1/100 is one percent 78/100 is 78 percent,
however any number not over 100 is more tricky
To find the what percentage of 126 is 22 you could use:

X% of blank is blank

126% of 22 is blank
1.26(22) is blank 1.26(22)= 27.75

Does this make more sense?

GuestNov 13, 2013

+118725

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OK so I"m having some difficulty with 10th grade ratios currently, this question in particular: (keep in mind that the / is a sign for what I think are ratios)
(x + 5)/16 = 32/5
Any help would be much appreciated!

The wording of ratios can be tricky.
Say you have 6L of diluted orange juice (that's orange juice and water)
If the concentration of orange is 1 in 3 then 1/3 is orange (the 3 represents the total)
The is 2L of pure orange mixed with 4L of water.
BUT
this means that the ratio of orange to water is 1 to 2 written as 1:2

If I say that the ratio 2:3 is equivalent to the ration x:12
I can solve this using fracions
2/3 = x/12
or
2/x = 3/12
or
12/3 = x/2
all of those would be correct.
But, 2:3 is not the same as 2/3
Do you get what I am trying to say?
-----------------------------------------------------------------
(x + 5)/16 = 32/5
so is your question actually
The ratio of (x+5) to 15 is equivalent to the ratio of 32 to 5. Find x?
(x+5) : 15 is equivalent to the ratio of 32 : 5

This is not the same as the fraction you set up BUT it can be solved using the fraction you set up.

(x + 5)/16 = 32/5
Now, do you need help with the actual algebra?
multiply both sides by 16*5 This will get rid of the fractions
Then expand the bracket
Then hopefully you can finish it.

MelodyNov 13, 2013

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GuestNov 13, 2013

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GuestNov 13, 2013

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P**P*POOP*P**P=CRACK

GuestNov 13, 2013

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Guest:
:roll: 844

GuestNov 13, 2013

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A few things I have to say, this is a very easy question. Just write it out, and then try to solve it.

GuestNov 13, 2013

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A few things to say:
Im sorry this may sound rude, but this is easy to solve. Please take the time to think before asking.

GuestNov 13, 2013

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GuestNov 13, 2013

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Watch your language!

GuestNov 13, 2013

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Watch your language!

GuestNov 13, 2013

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GuestNov 13, 2013

+3146

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[input]1/5^2[/input]

adminNov 13, 2013

+6

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I need with this math problem if anybody can help me please advise me on to solve this problem.......

TarverDelMNov 13, 2013

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