All Answers 358145 Answers

Solve for x:
17 x^2-200 x = 5

Divide both sides by 17:
x^2-(200 x)/17 = 5/17

Add 10000/289 to both sides:
x^2-(200 x)/17+10000/289 = 10085/289

Write the left hand side as a square:
(x-100/17)^2 = 10085/289

Take the square root of both sides:
x-100/17 = sqrt(10085)/17 or x-100/17 = -sqrt(10085)/17

Add 100/17 to both sides:
x = 100/17+sqrt(10085)/17 or x-100/17 = -sqrt(10085)/17

Add 100/17 to both sides:
Answer: | x = 100/17+sqrt(10085)/17      or       x = 100/17-sqrt(10085)/17

Now, you can see the answer for yourself.

It is B.A and D

It all depends on what you are doing. Give us a numerical example and will tell you exactly what you should do.

@DragonSlayer554

You got it. Congrats.!

She ran 24.75 miles in total

Use a calculator and ADD them all up, which is the answer.

what is the CUBIC ROOT of 8=8^1/3=2

Hola

Mira, para convertirlos puedes aprender de la siguiente manera.  

Tomas cada uno de los dígitos de derecha a izquierda y comienzas a sumar los valores de aquellos que aparecen en 1.  Es decir, cada posición de tu número tendrá por llamarlo asignado un número decimal por llamarlo así. La longitud de tu número binario y la cantidad de 0 y 1 que tenga, variarán el resultados. Hay una forma sencilla de realizar esta conversión, solo basta con aprenderse las potencias de dos, separar el número binario y ponerle arriba la potencia de 2 equivalente a su posición.

Con esta imagen lo entenderás mejor.

Te preguntarás que significan los números que están arriba del tu número en binario. Sencillo son las potencias de dos que van aumentando de izquierda a derecha.

2^0=1

2^1=2

2^2=4

2^3=8

....

2^13=8192

Ahora lo único que te queda por hacer es sumar aquellos que tengan el uno abajo y listo.

De izquierda a derecha  -> 1+8+16+32+4096+8192=  (Te la dejo a vos)

Saludos

Tty the calculator here: enter 1000 first then press X key followed by 4 and then the = key. That should give you the answer.

how do you find a=300 tan 22deg on the calculator

Enter 22 first and then press "tan" key, followed by X key and then 300. Finally press = key, and that should give you the answer.

Oups I feel super dumb haha thanks !

Solve the separable equation x(t)^2 ( dx(t))/( dt) = e^(2 t):
Integrate both sides with respect to t:
integral ( dx(t))/( dt) x(t)^2 dt  =   integral e^(2 t)  dt
Evaluate the integrals:
x(t)^3/3  =  e^(2 t)/2+c_1
Solve for x(t):
x(t) = -((-3/2)^(1/3) (e^(2 t)+2 c_1)^(1/3)) or x(t) = (3/2)^(1/3) (e^(2 t)+2 c_1)^(1/3) or x(t) = (-1)^(2/3) (3/2)^(1/3) (e^(2 t)+2 c_1)^(1/3)
Simplify the arbitrary constants:
Answer: | x(t) = -((-3/2)^(1/3) (e^(2 t)+c_1)^(1/3))           or x(t) = (3/2)^(1/3) (e^(2 t)+c_1)^(1/3) or x(t) = (-1)^(2/3) (3/2)^(1/3) (e^(2 t)+c_1)^(1/3)

50% = 50/100 = 1/2 = 0,5

i found thanks ! (250pi sqrt(2)

The best measurement to use for a cereal box is 4 liters.

11,000,000,111,001, start by counting them from the RHS and must begin with 0,1,2,3.......etc. The zeros in the string have no values. Only 1's do. If we do that, you will notice that we have 14 digits starting with zero. This means the last 1 is number 13. The ranking of each 1 is the power of 2. So, we have:

2^13+2^12+2^5+2^4+2^3+2^0=12,345. Which is the equivalent decimal number.

If you are on a diet or if you are from Lilliput then 4ml might be much better !

I think you got it backwards. Basic members don't receive any discounts but pay premium. Premium members receive a discount of 20% according to you. Basic members pay a premium of 570/480=1.1875 - 1=.1875 X 100=18.75% for the same dress. However, the dress would cost: 480/.80=$600 before the 20 % discount. And, if basic members paid 570 for the same dress that would cost $600, then they would get a discount of: 1 - 570/600=5% or 5% X $600=$30.00.

Thurs 31/12/15

Happy New Year

http://web2.0calc.com/questions/happy-new-year_1

Happy new year from Nauseated

https://web2.0calc.com/questions/i-need-to-find-the-asymptotes-of-this-hyperbola-x-2-2-121-y-5-2-81-1#r12

Great spacial concepts question:  Not answered on purpose.

Maybe one of our 13 to 16 years olds might like to try it??

http://web2.0calc.com/questions/sphere_2

Great geometry / algebra question from Mellie.

https://web2.0calc.com/questions/a-diagonal-of-a-rectangle-has-length-41-and-the-perimeter-is-98-find-the-area-of-the-rectangle

Building a trig graph        Melody

http://web2.0calc.com/questions/f-t-5-cos-pi-4-t-11

Binary to Decimal    (3 different methods) Thanks Melody, Bertie and guests.

http://web2.0calc.com/questions/binary-to-decimal

Calculus    Melody and guest

http://web2.0calc.com/questions/good-evening_1

Fourier Transform   NOT ANSWERED 

http://web2.0calc.com/questions/serious-question-fourier-transform-makes-no-sense-to-me

Not better but MUCH BIGGER: 4 Liters.

Go online and use this mixed fraction calculator:

http://www.calculatorsoup.com/calculators/math/mixednumbers.php

What is the mean of 2015 consecutive positive integers starting with 10?

[10+11+....+(n+9) + (2015+9) ] / 2015

= [10 +11+ .......     2024 ] /2015

= [ (n/2)(a+L) ] /2015

= [ (2015/2) (10+2024) ] / 2015

=2049255 / 2015

=1017