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How many did he give to his other sister?

I thought our guest posted a different question - maybe they posted a number of questions?

Anyway, if this is the case maybe our guest deleted the contents. (2 edits are logged)

I thought that if you deleted you still had to leave something behind but maybe with the new forum you do not have to anymore?

what is 3.5i mean

It could just mean 3.5*i where i is an ordinary variable 

OR

it could mean  3.5*i where i is the basic unit of the complex number system.

\(i=\sqrt{-1}\)

i    is an imaginary number

so

\(3.5i=3.5*\sqrt{-1}\)

yes, I think everyone agrees :)

how do i find degrees of inside a triangle if i only know measurements

That is what trigonometry is for :)

Maybe you will find this interesting  :/      

What is the direct variation equation if y=8 and x=4?

y=kx

8=k*4

so k =2

y=2x

If you want me to explain better than ask me too :)

how do you factor 3x^2+x-14

Factor the following:
3x^2+x-14

Factor the quadratic 3 x^2+x-14. The coefficient of x^2 is 3 and the constant term is -14. The product of 3 and -14 is -42. The factors of -42 which sum to 1 are -6 and 7. So 3 x^2+x-14  =  3 x^2+7 x-6 x-14  =  7 (x-2)+3 x (x-2):
7 (x-2)+3 x (x-2)

Factor x-2 from 7 (x-2)+3 x (x-2):
Answer: |  (x - 2) (3x +7)
 

x/4y times y/2x^4=x/(4y) X y/(2x^4)

Simplify the following:
(x y)/(4 y 2 x^4)

(x y)/(2 x^4×4 y) = y/y×x/(2 x^4×4) = x/(2 x^4×4):
x/(2×4 x^4)

Combine powers. x/(2 x^4×4) = x^(1-4)/(2×4):
x^1-4/(2×4)

1-4 = -3:
x^-3/(2×4)

2×4  =  8:
Answer: |   1/(8x^3)
 

y = 2(x - 2)  simplify

y = 2x - 4     the gradient is the number before the "x".........the vertical  intercept is  where x = 0

So

y = 2(0)  -  4     =  -4       so the vertical intercept   = (0, -4)

Actually, this is the very question that "nobody likes me" guest posted. I posted an answer, only to find that the question disappeared.

Agreed CPhill when I attempt to help (rarely) I try to show the steps and everyonce in a while try to leave them a solving point.

Your points are well made, Riddler

As for 3, I generally try to provide the "steps"  when I solve a problem, but.....I must admit.....I don't always dot every "i"   or cross every "t".......just giving answers without showing any work is generally not very helpful

I also like to see some effort on the questioner's part as to how they may have approached a solution......this gives us a guidepost as to what might be giving them trouble.....

I might add one thing.....many of these questions are just "calculator" problems.......I will generally ignore something that can be solved by hitting "enter"  on a calculator

For instance....."What's the square root of 10??"

3x^2 + 9x - 4  =  0  move the 4 to the right side

3(x^2 + 3x) = 4       factor the left side  

x^2 + 3x   =  4/3      divide both sides by 3

x^2 + 3x + 9/4  =  4/3 + 9/4       complete the square

(x + 3/2)^2   = 43/12         factor the left side, simpllify the right

x + 3/2  =  (+/-)sqrt(43/12)     take the pos/neg square roots of both sides

x + 3/2  = (+/-) [ sqrt(43/3)] / 2       simplify the right

x = (+/-) [sqrt(43/3)/ 2 - 3/2       subtract 3/2 from both sides

Nice answer, Guest....let me expand upon this, starting here:

x^6 = 64

x^6  - 64  =   0

(x^3  - 8) (x^3 + 8)  = 0

(x - 2) ( x^2 + 2x + 4) ( x + 2) ( x^2 - 2x + 4)  = 0

We  get the two real solutions of x = 2   and x = -2 by setting the first and third factors to  0 and solving

Then

x^2 + 2x + 4  = 0

x^2 + 2x + 1  = -4 + 1

(x + 1)^2  = -3

x + 1  = ( +/-)sqrt(3) i

x = (+/-) sqrt (3) i   - 1     produces two non-real solutions

And

x^2 - 2x + 4  = 0

x^2 - 2x + 1  = - 4 + 1

(x - 1)^2 = -3

x - 1  = (+/-)sqrt(3) i

x = (+/-)sqrt(3) i  + 1     produces the other two non-real solutions

I think you trashed him enough for now.

We have the following possibilities

x = 1 and y = 5  or y = -1

x = 7   and y = 5 or y = -1

Nope nothing.

Question : y=-2/9x+3 in standard form

Answer :

Standard form : ax+by=c

Slope-intercept form : y=mx+b

Multiply everything by 9

9y=-2x+27

Rearrange...

2x+9y=27  is your answer

NO question AT  ALL  is displaying for me.  I wonder why not.

can other people see a question here?

4338 can obviusly see a question.  ?????

2/5x^6+2=27.6

Solve for x:
(2x^6)/5+2 = 27.6

27.6 = 138/5:
(2 x^6)/5+2 = 138/5

Subtract 2 from both sides:
(2 x^6)/5 = 128/5

Multiply both sides by 5/2:
x^6 = 64

Taking 6^th roots gives 2 times the 6^th roots of unity:
Answer: | 
| x = -2 or x = 2 or x = -2 (-1)^(1/3) or x = 2 (-1)^(1/3) or x = -2 (-1)^(2/3) or x = 2 (-1)^(2/3)

Guest, I am wondering why you put this function equal to zero?   There is no =0 in the question.     :///

f(x) = − √ 2 − x^2

There is no question here at all !

Thanks Alan,

I did not think it was a simple answer.

I played around with it but I didn't really get anywhere :)

These posts just made my day. Thank you, Guest and Melody.

"On this website everyone seems to ignore me.  saying that i am rude is being rude and i gave it 16 minuets"

Look I really understand what you are saying.   Good help is so hard to come by these days.

It is always best to make demands on people, be really rude and demand that they tend your every need immediately.

Never say please or thank you and never pay them in money or gratitude.  

Never give anything in return, just winge very loudly when you do not get what you demanded immediately.

Yes I can see why you are so upset!  Of course people should kiss your feet in gratitude when you make demands upon them.

How rude all your  slaves, er servants, er, other forum members and guests are!!!

Something really should be done about it !!