web
2.0
calc
Registro
Ingresar
Información
Esta función requiere la aprobación de las cookies
Puede aprobar las cookies en la barra de notificaciones en la parte superior de esta ventana
Nombre de usuario
Contraseña
Ingresar
olvidó su contraseña
Sí, acepto las cookies
Este sitio web utiliza cookies para mejorar la experiencia del usuario. Al aceptar la casilla "Sí, acepto cookies" usted acepta todas las cookies de acuerdo con nuestra
Política de Cookies
Acceso seguro
Inicio
Foro
^{+0}
Widgets
Formulario
Matemáticas
Ayuda
números complejos
cálculo diferencial
cálculo diferencial
Ecuaciones
Gráficas de funciones
Algebra lineal
Teoría de números
pourcentages
Fonctions estándar
Probabilidad
Trigonometría
Conversión de unidades
Unidades
Sobre
Impreso
Política de privacidad
Términos de Servicio
Credits
Google+
Facebook
Email de contacto
Melody
Nombre de usuario
Melody
Puntuación
90158
Stats
Preguntas
830
Respuestas
24269
848 Questions
24730 Answers
+2
24
0
+90158
LaTex Coding
LaTex is a mathematics presentation language that can be used on this forum.
It is used in many other places as well.
This can be very confusing when you first use it but if you start with little things like using it to write
lee mas ..
Melody
11 hours ago
0
57
4
+90158
How to upload a picture
Please use this hyperlink to see instructions.
https://web2.0calc.com/questions/instructions-on-uploading-pictures#r4
●
●
●
●
Melody
16-sep-2017
+1
178
4
+90158
Have you had login problems - please comment
I have just been informed that a member is having problems signing in lately.
I'd like to know if anyone else has had any problems?
Could you please comment - especially if you to have had problems.
lee mas ..
●
●
●
●
Melody
01-ago-2017
+1
244
3
+90158
Repost: I am interested too.
Helperid bought my attention back to this question.
https://web2.0calc.com/questions/very-hard-math-question-for-my-profile-picture
●
●
●
Melody
24-jun-2017
+2
318
2
+90158
Ein großes Willkommen bei deinen beiden neuen Moderatoren!
On behalf of everyone I would like to thank admin and congratulate Omi67 and asinus on becoming moderators for the web2.0calc German forum today.
This forum has had little moderation for some time
lee mas ..
●
●
Melody
21-may-2017
+5
261
6
+90158
A big welcome to our two new moderators.
On behalf of everyone I would like to congratulate Omi67 and asinus on becoming moderators today.
They will mainly be moderating the German forum but they will be able to moderate here as well.
I thank you both
lee mas ..
Fuera tema
●
●
●
●
●
●
Melody
20-may-2017
+1
507
3
+90158
Some music to share :)
I enjoy listening to many different types of music from all over the world.
I would like to share what I am listening to now.
Maybe someone would like to listen to something that they might not have heard before.
It is just a song
lee mas ..
Fuera tema
●
●
●
Melody
03-may-2017
+1
333
13
+90158
Birthdays
Anniversary - Birthday Dates
The original post can not longer be edited so I am making a new one.
Original post: https://web2.0calc.com/questions/birthdays
Some members are no longer active but I have kept most in.
lee mas ..
●
●
●
●
●
●
●
●
●
●
●
●
●
Melody
25-abr-2017
+2
350
6
+90158
MysticalJayCat's belated birthday
Oh Dear !
We missed MysticalJayCat's birthday!
I am so sorry MJ !
I am baked you a cake :)
lee mas ..
●
●
●
●
●
●
Melody
24-abr-2017
+5
378
3
+90158
Reference material thread and 3D graphing calc.
I have just been asked, by member DrNourian, to include this 3D graphing calculator reference
to our "Reference Material" thread which can be found in the sticky topics on the right of the page.
This is a direct
lee mas ..
●
●
●
Melody
05-abr-2017
+3
693
8
+90158
@ Problems with the forum as of 25/3/17
Hi everyone,
I have seen a lot of individual complaints posted. I have also noticed that Admin has been seeing at least some of them and has been repairing the problems. Thanks Admin :)
Anyway, I thought it would
lee mas ..
●
●
●
●
●
●
●
●
Melody
25-mar-2017
+4
411
3
+90158
I am not familiar with the notation for these questions.
I am not familiar with the notation for these questions.
So I am interested in the answer if someone knowledgable would like to take a look . ://
http://web2.0calc.com/questions/coordinates-question
lee mas ..
●
●
●
Melody
04-mar-2017
-1
293
2
+90158
Melody's interest posts (1/3/17)
My interest posts list is exploding so I am going to put some of them here ://
Other people can do this too if they want to.
Just make it clear what you are doing. :)
lee mas ..
●
●
Melody
01-mar-2017
+20
1675
2
+90158
@ Is PROCRASTINATION a problem for you ?
Hi everyone,
I am getting some information from a couple of different members.
HighSchoolCalculus (HSC) found this you tube clip.
It is quite humourous and thought provoking.
lee mas ..
hectictar
●
●
Melody
25-feb-2017
«
último
83
82
..
2
1
»
#1
+90158
0
I'm sorry but the question does not make sense.
Melody
29-sep-2013
#1
+90158
0
What is the absolute value of 9?
What is the absolute value of -9?
There are 2 possible equations to make the problem true.
So, there are two answers.
I don't actually want to do it all for you.
Is this enough help?
Melody
29-sep-2013
#1
+90158
0
What does BM stand for?
Melody
28-sep-2013
#2
+90158
0
The square root of 5 is an irrational number so it cannot be written exactly as a fraction or a decimal. It can only be estimated.
Melody
28-sep-2013
#1
+90158
0
Initially y dash = 50*sin 53.1 degrees x dash = 50*cos 53.1 degrees
y=0 x=0
ongoing
y"=-g (I'll use -10) x"=0 ignore wind resistance
y' = -10t + 50sin 53.1 x'= 50*cos53.1
y= -5t^2 +(50sin53.1)*t x= (50cos53.1) *t
When y = 25
just substitute into the appropriate equation and solve with a quadratic equation.
I got 7.31 sec and 0.68 secs but I might have made a mistake.
This is enough to get you started. hope it helps.
Melody
28-sep-2013
#1
+90158
0
I am not going to do the whole question for you but i will try to explain.
If g(x)=3*t - 6
then g(2) would equal 3*2 - 6 = 0
g(-4) = 3*(-4) - 6 = -18
g(a) = 3*a - 6
Just replace the original thing in the bracket with the new thing in the bracket.
Melody
28-sep-2013
#2
+90158
0
I'm sorry, I don't get what Scott is saying although it would be easier to follow if this site allowed maths type.
Any way the question can only be answered if the original log is base e. So I will assume that.
log e^x = xloge = x*1 = x
So log (base e) of e^(2x+2) = 2x+2
The problem becomes 2x+2 = 7 The answer is x = 2.5
Melody
28-sep-2013
#1
+90158
0
This is a region, there are an infinite number of answers.
First graph 5x+7y=57 It will be a dashed line because the less than sign is used.
then test a point (0,0) would be good.
If it satisfies the equation you shade in that side of the line, if it doesn't you shade in the other side.
Hope this helps.
Melody
28-sep-2013
#1
+90158
0
There is no solution to this equation.
You are asking when does 5x-55 = 5x+9
This will be true when -55=9, in other words it will never be true.
Melody
28-sep-2013
#1
+90158
0
It would be -1 because this is the only possible value for x
Melody
28-sep-2013
«
último
2472
2471
..
2
1
»