Calculus

The formula for WHAT? Since you have not bothered to specify that crucial bit of information, I cannot provide a more useful answer.

The formula for WHAT? Since you have not bothered to specify that crucial bit of information, I cannot provide a more useful answer.

The formula for WHAT? Since you have not bothered to specify that crucial bit of information, I cannot provide a more useful answer.

The formula for WHAT? Since you have not bothered to specify that crucial bit of information, I cannot provide a more useful answer.

1000 ==

300

How does federalism work

C(x)=1500+2.50x

941.094

Let x, y, and a be sets and X,Y,x',y' be elements.

Denote X *x as X in (is an element of) x, I as intersection, and U as union.

If we can show that for all X *x, X *y (and similarly, if for all Y *y, Y *x), then we are done.

Case 1) xIa is empty

Then x, a and y, a have no elements in common. So, if xUa and yUa are equal, then for all y' *yUa but y' not*a, y' *y. Since xUa and yUa are equal, either y' *a or y' *x. But we supposed y' is not*a, so y'*x. Similarly, for all x' *x, x'*y. QED

Case 2) xIa is non-empty

Define a' as a - {x| x *xIa}. Then xIa' is empty, and you can use the same prove as above, replacing a with a'. QED

no

3x + 4 = 5x - 6

-3x -3x

4 = 2x - 6

+6 +6

10 = 2x

5 = x

16.66

I think the question is:

(3/8)x = (3/5)x - 9

Simplify by dividing everything by 3

x/8 = x/5 - 3

Get rid of the fractions by multiplying everything by 40.

40.x/8 = 40.x/5 -3.40

5x = 8x -120

Rearrange

120 = 8x - 5x

120 = 3x

x = 120/3 = 40

You can't. From that much information, you can't figure out the values for both 'x' and 'y'.

All you can tell is that whatever they turn out to be:

x = 6 - 3y

and

y = x/3 - 2.

In order to calculate what 'x' and 'y' both are, you need another equation besides

x + 3y = 6.

There's nothing wrong with that one, but you need one more.

You need the same number of equations as the number of unknowns.

(x+5)(x+3)

3y+5.2=2-5y

8y=-3.2

y= -0.4

X * X = 5.4

multiply X's

X^2 = 5.4

take square root of each side

X = 2.32379

12

1.2 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. And, being a decimal, there is no simpler form. Its rational equivalent is 12/10 which can be simplified to 6/5.

4mn + 8 is an expression: it is not an equation (or inequality) and therefore there is nothing that can be solved.

6-2kx=5-2x

2x-2kx=-1

x(2-2k)=-1

x=-1/(2-2k)

0.007850 cubic meters

If that's 6x - 5, x = 6

Start at the origin (0, 0) plot a mark there, then move down 3 and to the right 1 (1, -3) plot a mark there, move down 3 and to the right 1 again (2, -6) and plot a mark there then with a ruler make a line threw the three marks and its graphed!

It depends. It doesn't have to always be the same shape. So it can be 0, it can be 1, as long as it has straight lines and is a closed figure, it's a polygon.

* * * * *

What? A polygon with n sides has n*(n-3)/2 diagonals. Simple as that. So a 9 sided polygon has 9*6/2 = 27 diagonals.

integration is reverse of differentiation and vice versa

Integral of 1 is x Integral of tan(2x) = Integral of [sin(2x)/cos(2x)] =-ln (cos(2x)) /2 Integral of tan^2 (2x) = Integral of sec^2(2x)-1 = tan(2x)/2 - x Combining all, Integral of 1 plus tan(2x) plus tan squared 2x is x-ln(cos(2x))/2 +tan(2x)/2 - x + C = -ln (cos(2x))/2 + tan(2x)/2 + C