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Good for him.....but...what's the question?

u have 1 apple left becoz 2-1 =1 !so enjoy ur apple ! 

sin(-1290°)

Using a trig identity, we have

sin(-1290°)  =  - sin(1290°)

First, express 1290/360 as a mixed number = 3 + 7/12

Disregard the "whole" part and multiply the fraction by 360

This gives 210...and sin(210) =  - (1/2)

But, we need the negative of this .... = 1/2

Of course.....putting the original thing into the on-site calculator would be faster ..... !!!!

Perhaps this will help:

So, rounding up to the nearest month, n = 77 months.

thanks for the day wrap melody ! i wait for them everyday !

We are calculating

$$\left({\frac{{\mathtt{3}}}{{\mathtt{4}}}}{\mathtt{\,-\,}}{\frac{{\mathtt{2}}}{{\mathtt{3}}}}\right){\mathtt{\,\small\textbf+\,}}\left({\frac{{\mathtt{1}}}{{\mathtt{2}}}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{1}}}{{\mathtt{3}}}}\right)$$

We have to start by making the demoninators the same

$$\left({\frac{{\mathtt{9}}}{{\mathtt{12}}}}{\mathtt{\,-\,}}{\frac{{\mathtt{8}}}{{\mathtt{12}}}}\right){\mathtt{\,\small\textbf+\,}}\left({\frac{{\mathtt{6}}}{{\mathtt{12}}}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{4}}}{{\mathtt{12}}}}\right)$$ 

$$\left({\frac{{\mathtt{1}}}{{\mathtt{12}}}}\right){\mathtt{\,\small\textbf+\,}}\left({\frac{{\mathtt{10}}}{{\mathtt{12}}}}\right)$$

$${\frac{{\mathtt{11}}}{{\mathtt{12}}}}$$

This answer can't be reduced at all, this is the simplest term. 11 is the numerator and 12 is the demoninator, so the demoninator of the resulting fraction is 12

Zegroes has chastized me for using to few smilies.  This must be remedied!

  Is that enough Zegroes?  =melodys post. uh oh looks like we got a thief! here you stole chris's glasses again?

I'll do this problem too so you can (hopefully) have a few consistant answers.

(x-4)-(5X+6)= 14

(x) - (4) - (5x) - (6) = 14

(-4x) - (4) - (6) = 14

(-4x) - (10) = 14

          +10    +10              ---Add 10 to both sides

-4x = 24

-(-4x = 24)               ---Times both sides by a minus

4x = -24

x = -6

 Let's check it:

(x-4)-(5X+6)= 14

((-6)-4)-(5(-6)+6)= 14       ---Input -6 for x, because x = -6

(-10) - (-30 + 6) = 14

(-10) - (-24) = 14

(-10) + (+24) = 14              ---Minus a negative is the same as plus a positive

14 = 14 ✔

There we have it, x = -6!

you have to do you have to have a variable like 4 with it so it could be like 4*sin(-1290)

oh wow cphill thats much easier than i thought it was very hard ! thank u very much for this ! thumbs up ! thanks !

@@ End of Day Wrap - Monday 9/6/14   Sydney, Australia   Time 12:55am  (Really Tuesday morning)

Hi everyone,

Lots af great answers were presented by CPhill, reinout-g, Rosala, NonjaDevo, Morgan Tud, Alan, Rom and Feitan.  Thank you all 

I sent an email to Andre Massow yesterday discussing many items.  The main ones were concerning the phantom messages and problems with the members section.  I have received an initial reply but I have not had time to examine it properly yet.  Thank you Andre for your speedy response.

Interesting posts for today are as follows:

It really must be silly season.

(x-4) - (5x + 6) = 14

Distributing the negative outside the parenthesis changes all the signs on the things inside. So we have

x - 4 - 5x - 6 = 14     combine like terms

-4x -10 = 14           add 10 to both sides

-4x = 24                 divide both sides by -4

x = -6

Rosala.....look at my second way, again....it's just simple math.....

1st ..   Subtract 41-22 = 19 and add 1  = 20

2nd ..  Add 41 + 22 = 63

3rd ..   Multiply the "1st" times the "2nd"......(20)(63) = 1260

Now ..... divide that by 2 =  1260/2 = 630  !!

I know you can do that  ....  !!

Adding a long string of numbers is tedious.....and sometimes almost impossible.....this way is "easy-peezy"

let it be , its getting me hard to understand ur ways CPhill and alan , ill just do it the simple ways but when big numbers come in my way ill surely come back to these methods ! but still melody , cphill and alan thumbs up from me ! thank u very much ! 

Cphill good answer. I have a different one....

Correct it is 14

The last one posted by Melody is 4x3x2-(1x2).

Working:

4x3=12

12x2=24

1x2=2

24-2=22

I spent time looking at your question because I wanted to help you.  I did not know how poor it was until i had already wasted my time on it.  If I spend time trying to sort through your garbage post then I am entitled to post an answer displaying my displeasure!

For someone asking for FREE professional help you are being very discourteous.

If you want to put a link in make sure it is correct!

This is a great site full of professional people who give you their time and knowledge for free because they are very generous people who want to share their expertise and love of mathematics with the wider world.

You are most welcome to use this site but we expect you to be polite at all times.  And, if you are picked up for making erroneous posts you are expected to offer an appology not to offer up more rudeness!

PLUS - THERE WAS NO PICTURE IN YOUR QUESTION!

-----------------------------------------------------------------------------------

Continued here:

What about 1,3,9,10,12 to -9?

Every number can only be used once and(unless you can find a different solution) all numbers are used.

So....you want to make -9 ???

(3 - 12) + (10 - 9) - 1 =

-9 + 1 - 1  =

-9 + 0  =

-9

What about 1,3,9,10,12 to -9?

Every number can only be used once and(unless you can find a different solution) all numbers are used.

75 =

25 *3 =

5 * 5 * 3 =

5² * 3

P.S. - you can do this on our calculator....just enter ...   factor(75)

Thank you kind Sir.

The arc intercepted by the 71 degree angle is 2(71) = 142 degrees.

Since part of this arc is 104 degrees, the other part is the "C" degrees.

Therefore 142 - 104 = 38 degrees...and that is the measure of "C."

Likewise the arc intercepted by the 68 degee angle is 2(68) = 136 degrees.

Then,  the remaining minor arc - "B" - between the 71 degree angle and the 68 degree angle is just 360 - 136 - 104 = 120 degrees.  Therefore "A" = (1/2)(120 + 104) = (1/2)(224) = 112 degrees.

BTW......nice pic, Melody !!!

What is this nonsense that you speak Sir CPhill?

I entreat you to repent for it is a great injustice that you do me Sir.

Perhaps without your head you have no eyes to read for I know not how I could be more gracious.

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