Calculus

My iTouch calculator isn't working, so I will simplify the problem for you: x to the 5th power = -4

10

The prefix "kilo" means thousand; the prefix "milli" (not "milla") means 1/1000. If you divide that, you get a million millimeters in one kilometer.

any differential equation would be considered a calculus equations.

b4-3b3-10b2=0

divided by b2 -> b2-3b-10=0 (if b is not 0)

Delta=(-3)x(-3) - 4 x 1 x -10 = 49

b=(3+7)/2 or b=(3-7)/2

b=5 or b =-2

if b=0 the equation also holds then b=0 or b=5 of b=-2

X=2

5x^2(4x - 5)(5x + 11)

290.84864

56x^2 + 96x + 40

you might need to reword that ~sorry

-if that means: -6x+36=0, then...

-6(x-6)

x=6

A "system of equations" implies that there is more than one equation.

Solve both equations for y in terms of x:

y = (-2)x+5

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

Multiply the slopes together:

(-2) X (-1/2) = 1

In order for the lines to be perpendicular, the product of the slopes would have had to equal -1, but it equals 1, so they're not perpendicular.

7x + 8 = 84

7x = 84 - 8

x = 76/7

x = 10.8571

x2 + 8x - 9 = (x + 9)(x - 1)

It is a linear equation in one variable.

No, that's a parabola.

0

There are missing + or - symbols, but the square is completed in this case by dividing the coefficient of the x term by 2, giving:

(x ± 2)2 = x2 ±4x + 4

So to get to the original equation, there is needed an extra +1 or -9:

(x ± 2)2 +1 = x2 ±4x +5

(x ± 2)2 - 9 = x2 ±4x - 5

Depending upon what the missing (+-) symbols are. (Whatever the sign before the 4x, the same is used in the brackets of the square.)

When you can divide the Numerator and the Denominator by something other than 1 or itself

The coefficient of x2 is -3 which is negative. Therefore the curve is downward opening.

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. Also use ^ to indicate powers (eg x-squared = x^2).

There is no symbol between x and 3.

No. A proportional relationship between "y" and "x" must be of the form:y = kx

where "k" can be any constant. Thus,

y = 16x

would work perfectly. However, the additional "+4" makes it impossible to convert it to this form.

That depends on where you are trying to log in. Usually it is done the same way as the 9 previous times.

But if the thing you are trying to log in for the tenth time has some sort of restricted access, it might require some hacking skills or a bypass. Unfortunately I cannot help you with that, especially not knowing where you are trying to log.