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21!!!! help mua plzzzzzzzzzzzzz

I don't think that that answer is correct, Anonymous....if one number increased by 10, we couldn't have a mean that was less than before...!!

The correct answer is that the mean would increase by 2......(130 + 10) / 5 = 140 / 5   = 28  ....!!!

this is called a lightyear (the length of year of light traveling). this huge number times the seconds in the year. we get the insanely huge 5.88 trillion miles.

life is a thing no one can understand comepletly. the Lord knows. but as far as we are concerned, life is something we cannot stop, we can end it but it would be the end of us, and until it stops, we just know we have to go with it and see where it can take you. and with it, you can do some pretty amazing things. there are sometimes it picks you up and throws you on the ground, stomps you in the face, and leave you in the dust. you may bleed and be bruised but you're tough. you can do this. and you have to get up, and keep walking unitl the end.

the condition that distinguishes animals and plants from inorganic matter, including the capacity for growth, reproduction, functional activity, and continual change preceding death.....your welcome!

Error. literally.

Bible quote: A house divided by itself cannot stand

any other number can stand, all right. nope, zero divided by zero is definitly not zero.

my class was given this question and the common answers was "zero" and "nothing". nope, it sounds logical, but untrue. how can you divide nothingness by nothingness? maybe some kind of weird vacuum, but lets not think about it.

no matter how logical this sounds, it is not zero.

Yeah, you're hilarious. It's 0.

What kind of polyhedron?

An arithmetic sequence has a constant difference between two consecutive terms.

Ex:

1, 5, 9, 13, 17, ...

-46, -44, -42, -40, ...

20, 18, 16, 14, ...

BTW: It is very common to make mistakes based on a plus that should have been a minus or vica versa, especially when you have a minus before a paranthesis. When you have an expression like this, I'll highly recommend solving it this way:

-(x + 3)(2x - 5) = 

-(2x² - 5x +6x -15) =

- 2x² + 5x - 6x + 15 = ...

And NOT this way:

-(x + 3)(2x - 5) = 

- 2x² + 5x - 6x + 15 = ...

Both methods are mathematically correct, but the latter one makes it 1000 times more easy to make a mistake based on a wrong plus/minus. 

x^2-2x+1=4x^2+28x+49

3(x^2+10x+16)=0

x^2+8x+2x+16=0

x(x+8)+2(x+8)=0

(x+8)(x+2)=0

Hence,x=-8,-2

453.130 because 9+1 =10 but add 1 left side

sum of terms=$${\mathtt{26}}{\mathtt{\,\times\,}}{\mathtt{5}} = {\mathtt{130}}$$

new mean=$${\frac{\left({\mathtt{130}}{\mathtt{\,\small\textbf+\,}}{\mathtt{10}}\right)}{{\mathtt{6}}}} = {\frac{{\mathtt{70}}}{{\mathtt{3}}}} = {\mathtt{23.333\: \!333\: \!333\: \!333\: \!333\: \!3}}$$(as 1 term increased so 5+1 )

easy one!!!!!!!!!!!!!!

in casio new version calc s<=>d can be clickd

General rules:

I: Left, outer, inner, right: (a + b)(c+ d) = ac + ad + bc + bd 

II:  a - b = -(b - a)

III: -(-w) = w

(3x - 2)(4x + 3) - (x + 3)(2x - 5) = (2x + 1)(5x - 2)        Use I:

12x² + 9x - 8x - 6 - (2x² - 5x +6x -15) = 10x²  - 4x + 5x - 2      Use III, add/subtract some x'es and numbers:

12x² + x  - 6 - 2x² + 5x - 6x + 15 = 10x² + x - 2         Add/subtract some x'es and numbers:

.....        ......         .....      .....                                     Add 2 to both sides:

.....        ......    

Can you take over from here?

batman is always the answer

Add   12x   to both sides.

subtract 3 from both sides.

then think about what to do next :)

 14+x≤3

-14   -14

x≤-11

It doesn't need to be that complicated.

add the 6 and 7 first.

then add the fractions

then add those two answers together.

:)

Mmm sneaky ......

Those dots are you tip toeing around.   X)

It is 1/4 - 1/4- 3/4  = 0-3/4  = -3/4

If you put it into the calc on the home page it will give you the most simplifed fraction.

have a look a compare what happens when you put in 5/10 which you know is a half.

6 4/5 + 7 5/6 is equal to 34/5 + 47/6. Then, find a common denominator of 30. Multiply (34/5) by 6/6 and (47/6) by 5/5 to get (204/30) + (235/30). Then add 204 + 235 to get 439/30. Simplify to get 14 19/30.

 -0.75

x=0.2 ...if that`s what you were asking.