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There is a formula to measure the distance between you and the Horizon:

Distance to the Horizon: 3.57155 X sqrt(H/M)=Km, where H/M=your height in meters above sea-level. Example: If you are standing on top of a building that is 100m high, then the distance to Horizon is: 3.57144 X sqrt(100)=35.71Km.

-x^2-x^2

\(-x^2-x^2=-2x^2\)

There were m visitors in an exhibition on the first day and 1200 fewer visitors on the second day. On the third day, the number of visitors was 30% greater than the number of visitors on the second day. What was the average number of visitors over the three days?

The average number is given by :

[m + (m - 1200) + (m - 1200)(1.30 ] / 3   =

[ 2m + 1.30m - 1200 - 1560] / 3   =

[3.3m - 2760] / 3  =

[1.1 m  - 920 ]

Edit  for a slight error.........

What is the square root of 90 divided by the cube root of 86,485,393 multiplied by -5,954,828

A friend of mine, who happens to be a math teacher, gave me this random super-hard math problem, so I want to know what the answer is. Also, the square root of 90 is divided by the cube root of 86,485,393 which is multiplied, not after, but in the bracket, by -5,954,828

In what brackets?

Anyway, this is a calculator site so use the calculator/.

The list price of  a camera was w dollars. Paul bought the camera for $35 less than the list price. If the sales tax was 8 %, how much did paul pay for the camera including the sales tax?

The amount paid = A  = (w - 35)(1.08)

It is undefined.

You cannot divide any number by 0.

A group has an equal number of adults and children.  When n oranges are given to the group, each adult gets two oranges while each child gets one orange and there are still 5 oranges left. Write an algebraic expression for the number of oranges given to the adults.

The  number of oranges given to the adults  =  2x =   n - x  - 5        where x = the number of children = the number of adults

A friend of mine, who happens to be a math teacher, gave me this random super-hard math problem, so I want to know what the answer is. Also, the square root of 90 is divided by the cube root of 86,485,393 which is multiplied, not after, but in the bracket, by -5,954,828

It's 1

The answer is 0.00235

The cost 5 years from now will be

7(1.045)^5   =   about  $8.72

2cos(t)=sqrt(3)     divide both sides by 2

cos(t)  = sqt(3)/2     and this occurs at  pi/6 + n(2pi)   and at  (11/6)pi + n(2pi)     where  n is an  integer

Notice that using n(pi)  after the answers would not be correct.....for instance, if n =1

pi/6 + 1*pi =    7pi/6   .....but the cosine does not = sqrt(3)/2   at 7pi/6

Very nice, Melody !!!

According to WolframAlpha......no solutions exist for this system......

You are very welcome Shades :)

You probably already have a good text book but I found this online.  Maybe it will be helpful.

You would need to tell us the equation that you are talking about before we could answer that. ;/

Are you sure you asked this question correctly????   DId you mean "how many years before the account is worth 9392.50?'

6.5% interest per year is only   8500(.065) = 552.50 dollars/ year

9392.5/552.5 = 17 years  

Because you make it hard.

That's exactly how it is supposed to look at the end. Thank you very much!

One mole is equal to  6.023 x 10^23 molecules (or atoms)

if you only have 75 molecules, the numbr of moles is

75/(6.023x10^23)  =   12.45 x 10^-23 mole

Probably with trigonometry.  :/

to answer 3x plus 4 you would need to know what x is to answer that problem then you times whatever that number is by 3 

once you get that answer you do that number plus 4.