All Answers 358087 Answers

what is -(x-5)^2

-(x^2+5^2-2*x*-5)

-(x^2+5^2+10x)

-(x^2+10x+25)

-x^2-10x-25=0

-x^2-5x-5x-25=0

-x(x+5)-5(x+5)

(x+5)(-x-5)

x+5=0   ,      -x-5=0

x=-5      ,      x=5

x=+or-5

"If the universe go on forever and it all have some mass then I guess there is a infinite amount of mass. Anyway the black hole can’t even have all the known mass because we see it everywhere, so it can’t have infinite mass."

Yes I agree   

"This one not make my head hurt as much as the other one about the circle did."

YES I agree with this too   LOL

OK. But if you observe something don’t you know it better than something you didn’t observe? How can we know if the universe part we can’t observe have any mass at all? Maybe it do and maybe it don't.

If the universe go on forever and it all have some mass then I guess there is a infinite amount of mass. Anyway the black hole can’t even have all the known mass because we see it everywhere, so it can’t have infinite mass.

This one not make my head hurt as much as the other one about the circle did.

If you look at the top answerers board, the moderators have got solid stars :)

$$log_3\ 81\ =\ log_3\ (3^4)\ =\ 4$$

the quotient of 8 divided by 3.2 is multiplied by 0.4 what is the product?

8/3.2=2.5

2.5*0.4=1

answer is 1

@@ End of Day Wrap Fri 28/8/15 Sydney, Australia Time 9:16pm ♪ ♫

Hi to those few people that are around.  We have been really low on answerers today although EthanPendance answered quite a few.  Other answerers included Matsunnymat, sasasa and Shaniab.  Thank you  

No Dragonlance,  it says

"Now, the size of the observable universe is about 14 billion light years, and using the above value of density gives you a mass (dark and luminous matter) of about 3 x 10⁵⁵ g, which is roughly 25 billion galaxies the size of the Milky Way.

This is your misquote:

"It say on this site there is 3 x 10⁵⁵ grams of matter in the known universe."

The word "observable" does not mean "known".  This artical does not even imply that there is a finite amount of matter in the universe.     Even if the word "known" had been used, "the known universe" is still not the same as "the universe". :)

It say on this site there is 3 x 10⁵⁵ grams of matter in the known universe.

There are a couple but they are mostly for uni students.  Some cater for senior high.  You just need to google for them.  They may take a while to find.  I have never looked for any, other than maths forums.  I believe this forum is quite unique in the way it works and in the age/ability group that it caters for :)

I like camping.  I don't like setting up in the rain and I do not like packing up a wet tent.

It can rain a little during my stay though.  My tent doesn't leak.  :/

I like camping in comfort.  One time I went camping with friends and they bought a full size ceiling fan with them which they mounted in their annex.  That was a hoot!  They also bought a proper home fridge.  They set their car up with video games for the kids.  I was very glad that they did not bring a TV for the adults.

I used to enjoy leaving all technology behind when i camped.  Now that would rarely happen.  People (including myself) think that they cannot survive with out a mobile phone!  

It rained heavily that time too, the kids were playing in a little boat in the middle of out camp site.  Oh what fun !!  

YES TR  I REALLY AM SERIOUS, IT WAS GREAT FUN !!

$$9^7\div 9^5=9^2=81$$         

Wow! that was a massive cut !!

Sat 29/8/15

If you would like to comment on other site issues please do so on the Lantern Thread.  Thank you.    

Interest Posts:

FTJ means 'For the juniors' 

The bar probably means every thing that is NOT in the set (I mean not in the set that does not have the bar)

The bar is used to indicate the complementary set.

no it isn't :(

it is 5/sqrt(2)

"There is only a finite amount of mass in the universe so you can not have infinite mass."

How do you know that there is an finite amount of mass in the universe Dragonlance?

This is impossible because the units are not compatible!

$${\mathtt{16\,021}} \,{mod}\, {\mathtt{25}} = {\mathtt{21}}$$

The answer needs to be what ??

That is assuming that it was 37.6 dollars and not 37.6 pesos :/

OK his answer was not poisonous slop. I not feed it to the hogs if it was. It was just not fit for human consumption but the hogs like it fine. hahahaha

Maybe :/    Or just say zero  

No it isn't Haley.  It is  3/4   =   0.75

You are missing bracket   (or maybe you have an extra one.)

If you balance your brackets then we can show you how to solve it :)