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Tysm

For the first problem, as a hint, look for large solutions.

The smallest n that works is 944.

what's the question here???

For 1, the perimeter is 8 + 12*sqrt(2).

The maximum value of the sequence is 3.

lengths of the sides  

2/      Second triangle side length are:      17, 16, and 17  

x + 30 = 3x - 10 

x = 20

Ok i'll will keep that in mind!! Sorry :/ 

I understand because sometimes people in math give me confusing solutions and I don't understand.

So sorry @namjin !!!!

I'm pretty sure this is off-topic. 

So using logic, we could get that in the 2 months they met every 5 days, they met 12 times because the 2 months included 61 days. Divide that by 10 and we get 12 with leftover 1. Now, we get 22 - 12 = 10. This gives us 10 meetings in 1 month. So, adding that 1 leftover from the division we did, we get 

every 3 days

I'm saying that the answer and the explanation is correct.

Sorry if i wasn't clear

x = 20 because x+30=3x-10, so 2x=40, and x=20.

There's no problem, it always says waiting for moderation for a bit after a question with a picture is posted.

There is a problem with the picture.

and also, this is probably a really dumb question, but the inverse of 4 is 2  and the inverse of 5 is 1 in this situation right? sorry if this was a dumb question, I've just never learned this stuff before.

To calculate appreciation as a dollar amount, subtract the initial value from the final value. To calculate appreciation as a percentage, divide the change in the value by the initial value and multiply by 100. For example, say your home was worth $110,000 when you bought it, and now its fair market value is $135,000.

thank you so much geno! I'm starting to understand this now!
 

I just have 1 question, for number 1, why does 1+0=0 and why does 2+0=0? Isn't 1+0=1 and 2+0=2?

1)  0 + 0  =  0     1 + 0  =  0             2 + 0  =  0                           etc.

     0 + 1  =  1     1 + 1  =  2             2 + 1  =  3

     0 + 2  =  2     1 + 2  =  3             2 + 2  =  4

     0 + 3  =  3     1 + 3  =  4             2 + 3  =  5

     0 + 4  =  4     1 + 4  =  5             2 + 4  =  6  =  0

     0 + 5  =  5     1 + 5  =  6  =  0     2 + 5  =  7  =  1

2)  The identity element is 0 because 0 + n  =  n + 0  =  n  for  n = 0, 1, 2, 3, 4, 5

3)  The inverse of 0 is 0 because 0 + 0  =  0

      The inverse of 1 is 5 because 1 + 5  =  5 + 1  =  0

      The inverse of 2 is 4 because 2 + 4 = 4 + 2  =  0

      The inverse of 3 is 3 because 3 + 3  =  0

3x² + 5x - 2  =  (3x - 1)(x + 2)

So, either  3x - 1  =  0     --->     x  =  ........

            or    x + 2  =  0     --->     x  =  .......

And, finish ...

1)  angle(NEA)  =  ½·( arc(NA) - arc(TA) )  =  ........

2)  angle(ENA)  =  ½·arc(TA)  =  ........

3)  angle(EAN)  =  180^o - angle(NEA) - angle(ENA)  =  .......

4)  angle(NAS)  =  180^o - angle(EAN)  =  ........

One number x is twenty-five less than four times another number y. If each number were multiplied by six, their difference would be 246. What are the numbers?

Eine Zahl x ist fünfundzwanzig weniger als das vierfache einer anderen Zahl y. Wenn jede Zahl mit sechs multipliziert würde, wäre ihre Differenz 246. Was sind die Zahlen?

Hello Guest!

\(4y-25=x\\ \underline{6x-6y=246}\\ 6(4y-25)-6y=246\\ 24y-150-6y=246\)

\(18y=396\)

\(y=22\)

\(x=4y-25\\ x=4\cdot 22-25\)

\(x=63\)

\(4\cdot 22-25=63\\ 6\cdot 63-6\cdot 22=246\\ 4y-25=x\\ 6x-6y=246\)       q.e.d.

The numbers are x=63 and y=22.

  !

1)  Since Z is the center of the circle, arc(BC) = angle(BZC)   --->   arc(BC) = .......^o

2)  Since angle(BAC) cuts off arc(BC), angle(BAC) = ½·arc(BC)   --->   angle(BAC) = .......^o 

3)  Since AB || CD, angle(DCA) = angle(BAC)   --->   angle(DCA) = .......^o

Please help with this division! 

\((3x^3+0x^2-x+1):(x+5)\)

Hello Guest!

  \((3x^3+\ 0x^2-x\ +1):(x+5)\) \(=3x^2-15x+74-\frac{369}{x+5}\)

   \(\underline{3x^3+15x^2}\)

           \(-15x^2-\ x\)

          \(\underline{-15x^2-75x}\)

                           \(74x+1\)

                           \(\underline{74x+370}\)

                                   \(-\ 369\)

  !