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Cosine is adjacent over hypotenuse. The easiest way to do this would be to think of a 30, 60, 90 triangle in the unit circle. The side adjacent to the 30 degree angle is opposite the 60 degree side, so sqrt(3) in length, and the hypotenuse is 2. So Cosine(30) = sqrt(3)/2

GuestDec 13, 2013

Solve it for what? It's already solved for Y. If you want to solve for x you can move the 5 over and get x<Y-5. You cannot solve for 2 variables if only given one equation.

GuestDec 13, 2013

There are 1000 milligrams in one gram, so to convert mgs to grams you divide by 1000. 5798 mg is the same as 5.798 grams, so it is greater than 5.5 grams.

GuestDec 13, 2013

Dec 12, 2013

+118725

iluvmathw/mr.hackett:
how do u go from 5y+5=45x+315 to -9x+5y=58??? PLEASE HELP

Hello iluv...
First yuo look for a common factor, a number or a letter that goes into all the terms.
5 goes into everything
Divide both sides by 5

Now the answer doesn't have any xs on the right hand side (RHS) so you will need to take them away from the RHS but you will need to take them away from the LHS as well so that your equation stays 'balanced'.

You should be able to do it now.

MelodyDec 12, 2013

+118725

29+16

Lily:
I added 2 + 1=3 and 9 + 6= 15 so den i added it together and got 56

Well 9+6=15
and 2+1=3
All correct so far.

but sorry, the answer is not 56
I'll show you quickly what you could have done
29=20+9
16=10+6
then
20+10=30
and
9+6=15
put them together and you get
30+15 = 30+10+5 = 45
-----------------------------------------------------------------------------------

I want you to answer these questions for me, they are easier than the last one.
I want you to split 2 digit numbers into tens and ones
for example 26 = 2 tens + 6units = 20+6
I'll do the first one to show you what I want.

1) 37 = 30+7
2) 84 =
3) 51 =
4) 42 =
5) 79 =

Can you do these 4 questions for me please Lily.

MelodyDec 12, 2013

+118725

Try using this online calculator

http://www.wolframalpha.com/input/?i=14%5E7+mod+17

If you have a specific question that you want to do I will try to help you.

MelodyDec 12, 2013

stop.

GuestDec 12, 2013

#19

It would be 10.2582
Hope that helps you.
I'm in Algebra 2

MichaelDec 12, 2013

I know its I dnt knw

GuestDec 12, 2013

plzz help what is 30 over 5+10?
any1 knw?

GuestDec 12, 2013

If each line contains 4 images that can be ON or OFF, you have 2^4 combinations for each line.
If each line contains 16 combinations, and you have 4 lines, the total of combinations is 16^4 = 65 536 combinations

Sorry

GuestDec 12, 2013

If each line contains 4 images that can be ON or OFF, you have 4^2 combinations for each line.
If each line contains 16 combinations, and you have 4 lines, the total of combinations is 4^16 = 4 294 967 296 combinations

GuestDec 12, 2013

what is 32mm as apercentage of 5.6cm

GuestDec 12, 2013

i know but was is 32mm (320cm) as a percentage

GuestDec 12, 2013

As a percentage of what? 32mm represents 3.2% of one Meter.

GuestDec 12, 2013

I added 2 + 1=3 and 9 + 6= 15 so den i added it together and got 56

GuestDec 12, 2013

+118725

Guest:
How do you use the modulus operator on the calculator?

Most calculators don't have a modulus operator
What kind of calculator do you have.
You might be able to download a user manual from the internet.

I really would like to know what calculator you have.

MelodyDec 12, 2013

+118725

ahmed:
find sine of 36°52'
what is the process

Hi Ahmed
There is a degrees,minutes and second button on your calculator. It looks like ^o ' "

Make sure your calc is in degrees mode, do you know how to do that?

it is just
sin 36 ^o ' " 52 ^o ' " =

Does this work alright on your calculator?

MelodyDec 12, 2013

+118725

Guest:
3x<or equal to 18

Have a look at this you tube clip

http://www.youtube.com/watch?v=OKlRsTV43oY

MelodyDec 12, 2013

+118725

Umair Younas:
how to write complex equations in this calculator

Give us an example of what kind of complex equation you are talking about.

Do you mean the web2.0calc ?

MelodyDec 12, 2013

+118725

Jesus:
Quote:

What is 3 wholes and 5 6ths plus 4 wholes and 3 6ths equal

Hi Jesus,
You can add the whole bits easily enough 3+4=7wholes

now look at five sixths + three sixths

Draw a circle - (that is a picture of a cake)
Now cut you cake into 2 halves
now split each half into 3 pieces.
So altogether your cake has been cut (with a pencil) into 6 equal pieces.
Each piece of cake is One 6th (or 1/6) of a cake

Colour in 5 of those (1/6) pieces.
Now you need to add another 3 of those (1/6) pieces
I don't think that there are enough pieces of cake to do this so you better draw another cake and cut the new cake in to 6 pieces just like you did with the first one.
If you don't have enough pieces on your first cake just keep going onto your second cake.
now how much of your cake have you coloured in?
I want you to answer and tell me how far you have now got on this question.

Over to you.

MelodyDec 12, 2013

#18

Answer is 216.562.

Mae615Dec 12, 2013

9002. You are welcome

GuestDec 12, 2013

z+8+3z </= -4
(-8) (-8) subtrace
z+3z </= -12
(3) (3) divide
z </= -4

It might be the other way around as in z >= -4 im not that good with inequalities

that's the only one ill do I have a life too you know

GuestDec 12, 2013

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