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Melody:
I answered this question for someone else recently - yesterday I think.

THANKS ILL TRY TO FIND IT(:

GuestNov 14, 2013

What kind of math is this?

GuestNov 14, 2013

Explain your question a little better, like more details please?

GuestNov 14, 2013

ummmm, 6 ?

GuestNov 14, 2013

hola

GuestNov 14, 2013

1+1= Answer yourself

Easiest question to possibly answer. This isn't rocket science so why make the effort to play stupid?

Translated using Bing Translator (Spanish to English)

GuestNov 14, 2013

*Cactus

GuestNov 14, 2013

+118725

I have absolutely no idea but I did find this webpage. Good luck with this.

http://www.godlikeproductions.com/forum1/message577082/pg1

MelodyNov 14, 2013

+118725

I answered this for one of your classmates already.

MelodyNov 14, 2013

+118725

First multiply both sides by 4 then it might be easy.

MelodyNov 14, 2013

+118725

-r - (-7) = 16

-r + 7 = 16

-r = 9

r = -9

MelodyNov 14, 2013

+118725

what is the slope-intercept form of (9,65) and (10,52)

gradient (slope) = (52-65) / (10-9) = -13/1 = -13

remember, it is rise on run
it is the y axis that rises
and the x axis that run

MelodyNov 14, 2013

+118725

What is the value of the expression −3x2y + 4x when x = −4 and y = 2?

do you mean −3*2y + 4x when x = −4 and y = 2?

Just substitute in the numbers but remember there is a * sign between 2 and y, and between 4 and x

MelodyNov 14, 2013

+118725

I answered this question for someone else recently - yesterday I think.

MelodyNov 14, 2013

+118725

0.012 = 0.012*100 % = 1.2%

MelodyNov 14, 2013

+118725

how do you do the problem log base 3 of 20 -log base 3 of 6 - log base 3 of 30

=log base 3 of (20/6 divided by 30)

=log base 3 of (20/6 * 1/30)

=log base 3 of (1/9)

=log base 3 of (3 ^-2)

=-2 log base 3 of 3

= -2 *1
= -2

I suggest that you work through this web site
http://www.mathsisfun.com/algebra/logarithms.html

MelodyNov 14, 2013

+118725

1.2 * e ^ (-9)

MelodyNov 14, 2013

+118725

3x {(2x-y over 3) - (x-2y over 6)}

Do you mean 3x { [ 2x - (y/3)] - [x - (2y/6) ] } ?

= 3x { [ 2x - (y/3)] - 1 [x - (2y/6) ] } (remember that there is an invisible 1 )

= 3x { 2x - y/3 - x + 2y/6 }

=(3x/6) ( 12x - 2y - 6x + 2y )

=x/2 ( 6x )

= 3x ²

MelodyNov 14, 2013

+118725

i = sqrt (-1)
It is an 'imaginary number'
University mathematics often involves imaginary numbers.
i is the most basic imaginary number that there is.

so
At school, the sqrt(-9) does not exist because you can't find the square root of a negative number.
if you study mathematics for long enough you will learn that

sqrt(-9) = sqrt (9*-1) = sqrt9 * sqrt(-1) = 3i

Sometimes maths gets a bit magical.

You might find this web page interesting
http://www.mathsisfun.com/numbers/imaginary-numbers.html

MelodyNov 14, 2013

+118725

1/20 * 1/19 * 1/18 * 1/17 * 1/16

MelodyNov 14, 2013

+118725

A 20 centimeter pendulum swings in front of a metric ruler. The bob(Weight on the end of the pendulum) is releases from a position of 36 centimeters. It swings to the 14 centimeter positionbefore winging back to 36 centimeters.
What is the period of the pendulum?=
2pi sqrt(20cm/(980(cm/s^2)))= 9 sec.

To tell you the truth I don't even understand most of this question eg where is the 36cm and 14 cm measured from?

Anyway, I googled it and came up with this web page
http://www.algebra.com/algebra/homework/Rational-functions/Rational-functions.faq.question.66609.html

It says that T=2pi[sqrt( l/g )]
where l is the length of the pendulum so l = 20cm
and g = gravity = 9.8m/s 2 = 980cm/s ²
So
T = 2pi[sqrt (20/980)]
T = 2pi (1/7)
T = 0.897 seconds approx
T = 0.9 sec approx

Since I don't understand your question I really couldn't say if this is correct.

MelodyNov 14, 2013

Turn your radicals into powers with the root in the denominator of your power. Then you add the powers as addition of fractions with the most common denominator being your resulting root of your condensed radical.

GuestNov 14, 2013

+30

ifrogot1Nov 14, 2013

poopy 696969696969:
By the way I'm
the tuffest kid in skool and I now some bad wurds don't mess wit me

This is stupid. U must be 5 years old.

HenishaNov 14, 2013

37.5

HenishaNov 14, 2013

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