Question about Sony Ericsson K800i Cellular Phone

# Please solve pls find the value of x in the equation 100x^4+361x^3+424r^2+110r-73=0

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You cant coz there are two variables (i.e 'x' and 'r')

Posted on Oct 15, 2008

Hi there,
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Posted on Jan 02, 2017

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### What ia the sulution of 3y-6x=-3

To find the solution, first find the value of y for each equation.
Then substitue one equation into the other so that you only the x variable left.
Then just solve for x.
Once you have a value for x, then you can easily solve for y.

So for the first equation:

3y - 6x = -3
3y = 6x - 3

y = 2x - 1

Now for the second equation:

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y = -4x + 5

Since both equations equal y, they also equal each other, therefore:

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Now just solve for x:

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Now substitute x=1 into either original equation:

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Good luck, I hope that helps.

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First plug in the first point (1,5) to the general form:
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Do the same for the second point you're given.
From here solve the first equation for m in terms of b.
Plug this value of 'm' into the second equation so you will end up with something like:
3=(something in terms of b)*(-2)+b
This final equation can be solved for b (try factoring)
You now have a value for the y-intercept. Plug that into y=m*x+b
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### Need help with fx - 991 ms to solve f(x)=100x-64*x^2+48*x^3 for different value of x

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This calculator cannot solve equations because it does not have an equation solver.

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### How to input cos x=0.75?

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Make sure the calculator angle unit is the same as your problem requires (degree, radian, grad). Here are some screen capture to help you. Change the equation to yours.
To enter the equation in screen above, use the right arrow.

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### A carpenter was contracted to repair a kitchen for \$18000, the work took him 6 hours more than he has estimated and as a consequence, he earned \$100 per hour less than he had estimated. how many hours had...

I will try to solve it systematically so it will be easier to understand. Note: The solution involves solving a quadratic equation.

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Time spent extra: 6 hours.

Totals hours spent: (x + 6) hours

New rate: \$18000/(x+6 hours)

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18000/(x+6) + 100 = 18000/x

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Simplify:

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x^2 + 6x - 1080 = 0

Solve the above quadratic equation by any method (completing square, factorization or quadratic formula)

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Therefore x = Estimated time = 30 hours

Check:

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### How do you enter the equation 4(5x+3)=2(7x+6) in the calculator?

http://support.casio.com/pdf/004/fx-115ES_991ES_Eng.pdf
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Volume 1 x .4 + Volume 2 x .75 = 70 mL x .5

Volume 2 = 70 - Volume 1

V1 x .4 + (70-V1) x .75 = 70 mL x .5

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