Calculus

5x-72

x4 + 2x3 - 9x2 + 18x = x(x3 + 2x2 - 9x + 18) which I do not think can be factorised further.

y-1=(x-2)^1/2

2 sin2 x + sin x = 1.

Letting s = sin x, we have:

2s2 + s - 1 = (2s - 1)(s + 1) = 0; whence,

sin x = ½ or -1, and

x = 30° or 150° or 270°.

Or, if you prefer,

x = π/6 or 5π/6 or 3π/2.

1, 13, 17, 221

42

x > 2

3x5 + 4x8 does not have a solution because it is not an equation.

Are you looking for it's derivative? That would be:

15x4 + 32x7

Did you want it's indefinite integral?

∫(3x5 + 4x8) dx = x6/2 + 4x9/9 + C

Or did you actually mean "three times five plus four times eight"? If so, the answer is 47.

yes

x3+xy-x2y2=x(x2+y-xy2)

Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "equals" etc.

A bottle of Jack

This depends on what you mean by "X3". If the equation is x3-x, then the graph would increase up to about y=0.385, crossing the x-axis at x=-1, then decrease to y=-0.385, crossing the origin, then begin to increase again, crossing the x-axis at x=1.

If you just mean x*3-x, then the answer would be 2x.

You just enter the function in as f(x)=x^3-x and it will tell you the graph.

For future reference, x3 is x^3, not x3.

-25

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Take a position equation found experimentally, s(t), and take a double derivative. The first d/dx is velocity and the second is acceleration.

(3/5x) = 9......we cross multiply 9 by 5x

3 = 9(5x)

3 = 45x........dividing across by 45

3/45 = x

x = 1/15

12% = 12/100, but this fraction can be reduced to 3/25.

In mathematics, the curl of a vector is the maximum rotation on a vector field, oriented perpendicularly to the certain plane. The curl of a vector is defined by this form:

∇ x F =

[i . . . . j . . . . . k]

[∂/∂x ∂/∂y ∂/∂z]

[P. . . Q. . . .R. . ]

...given that F = <P,Q,R> or Pi + Qj + Rk

Perform the cross-product of the terms to obtain:

∇ x F = (∂R/∂y - ∂Q/∂z)i + (∂P/∂z - ∂R/∂x)j + (∂Q/∂x - ∂P/∂y)k

-1

Unfortunately, the browser used by Answers.com for posting questions is incapable of accepting mathematical symbols. This means that we cannot see the mathematically critical parts of the question. We are, therefore unable to determine what exactly the question is about and so cannot give a proper answer to your question.

Y = -2X + 6

The line has a slope of -2 and passes through the point Y=6 on the Y-axis.

-- From the point Y=6 on the Y-axis, move 1 to the right and 2 down. This brings you to the point (1, 4). Mark the point.

-- Place your ruler so that the point Y=6 and the point (1, 4) are both along the ruler's edge, and draw the line.

hi um i need help with the question i posted there

1, 2, 31, 62