Calculus

Assuming the equation described is: w = (Cr)-2...

Remember that any value to a negative power can also be represented like this:

(Cr)-2 = 1/(Cr)2

Also note that we can distribute the power over multiplication. (This doesn't apply to addition!)

(Cr)2 = C2r2

So if we rewrite the equation with this, we get

w = 1/(C2r2)

If we invert both sides and then divide by C2 on both sides, we get

1/w = C2r2 → 1/(wC2) = r2

Take the square root of both sides, and you'll have the equation in terms of r:

r = sqrt[1/(wC2)]

The biggest step was realizing that anything to a negative power can be inverted to find the same with a positive power. For example, 2-2, if you type it in your calculator, gives you 0.25, or 1/4. If we do what we did above, we can take 2-2 and make it 1/(22), which also equals 1/4. This applies to any negative power, and is a powerful technique for solving equations with negative exponents.

Twice. Between negative two and negative one.

Yes and no, it depends on whether you are willing to accept non-integers:

Square root of 90 is 9.486832981... so A^2 - 90 = (A - 9.486832981...)(A + 9.486832981...)

48=8x+2

we must isolate x :)

subtract 2 from both sides

48-2=8x+2-2

46 =8x

x is annoyed of number 8. we must exterminate it.

divide both sides by 8 :D

46/8=8x/8

46/8=x

therefore:

23/4=x

yay!

it equals 150, according to Google Calculator :)

Wikianswers calculator says 7900 * 3.14 = 24806.

Typically, it's to give you an idea of a function graphically. Sometimes you deal with functions that are really hectic in design and they don't really have all the points smoothly in place (for example, a graph with an empty point or ^, a peak). A limit gives you an idea of what's happening with the graph as you get close to that point or area (as with infinity not being an actual point), hence the "as x approaches N," N being either some number, or negative or positive infinity.

You should generally state that the function is continuous and differentiable over the interval you are using (or throughout the entire function).

4

put it to the power of 1/2

141/2 = 3.74

DO ALGEBRA!

If you don't know algebra, ask your mom and dad or attend a class on algebra or LOOK IT UP ON THE COMPUTER!

If x=-17/73 then -x=17/73

you need to know the x or y value

One equation

y equals 9

x equals 14

Don't forget to add it to 23.

A borehole geophysical log is the science of recording and analysing measurements of physical properties made in wells or test holes.

Borehole Geophysical logs provide a borehole record of the lithology, fractures, permeability, porosity and water quality.

220 + (6%) = 233.2

1.989 x 1030 is 0.00255% of 1.29 x 1035

yep

It is x + 7. It is not an equation and so cannot be solved, and it cannot be evaluated without information about x.

.3x=72.3

which implies, x=72.3/.3=241

F. X. Soenaryo has written:

'Sejarah perlawanan terhadap Belanda di Lombok, 1945-1949'

'Laporan penelitian pariwisata dan perubahan sosial di Kuta, 1975-1995'

F. X. Rizy has written:

'O'Neill the Great'