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Click on "2nd" key first, then use "acos", which is the same as cos^-1.

To solve 2+2 you need to add 2 to 2 to get 4

Answer: 4

9 4/5 - -4 1/2

(49/5) - (- 9/2) =

(98/10) - (-45/10) =

98/10 + 45/10 =

143 / 10 =14 3/10

Circumference = Diameter x Pi ={Radius x 2} x Pi.

Just google it.

Congrats bruce wayne

Joker youre crazy 😄  I never knew joker liked shakesphere

Congrats although we despise each other congrats

If you take a number and then subtract it by itself that number is 0.

If you take a number and then subtract it by itself that number is 0.

Math can be difficult for some people but that dosen't make them gay okay this person jyst has a deep hate for math

Sword Art Online and High School DXD (may contain innapropriate content don't watch High School DXD unless 16 or older is my advice

They aren't "mean" their just having a poor life some may have a family member dieing or may be influenced by abuse or drugs or some may just be mentally ill.

your just saying that because you suck at it. if you think math is gay then your gay.

Lol i think you need to talk with youre grammar tea her though not being mean but boaring is spelled boring

Speed =Distance/Time

Let the distance travelled before the 2 trains meet=D, then

D/85 =[D+46]/110, solve for D

D =156.4 miles - when the 2 trains will meet.

156.4/85 =1.84 hours- after 3:30 when they will meet, or 110.4 minutes after 3:30pm. So that:

3:30 + 1.84 =5:20:24pm - when the 2 trains will meet. 

Sakurasou no pet na kanojo

There is a 46 miles difference between the trains (34+12). Eduardo's train travels 25 miles faster than Berto's train (110-85). After one hour there should only be 21 miles difference between the trains (46-25). It takes 84% of an hour for Eduardo's train to catch up (21*100/25). 84*60/100 = 50.4 minutes, which is 50 minutes and 24 seconds. So added up it takes 1 hour 50 minutes and 24 seconds until the trains meet up, which is at 5:20:24 p.m.
Hopefully I didn't make any mistakes while calculating using miles, since I am from the Netherlands and we use kilometers here.
Well anyway, I hope this helps you out ^w^

\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}=21\)

69

Chickens are my favourite animal, so yes.

I also enjoy eating chicken though :^)

Pi is a number with infinite decimals starting with 3.14 . It is mainly used for calculations involving a circle.

Hope this informed you ^w^

There aren't any stars. They're all gone. Hadn't you heard? They're all gone.

Ooh, that's deep. I think I'll put that into my book on Wattpad!

So

x+2=10

x=8

The closest star to our Solar System is Proxima Centauri, which is 4.2 lightyears or roughly 39735067984839 km away from us. Stars are many lightyears away from Earth.

Hope this answered your question ^w^