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8.  (x + 6)^2 + (y - 7)^2  = 81

9.  The radius  = sqrt [ (-6 - 0)^2 + ( -8 - 0)^2 ] =  sqrt (100) = 10

So...the equation is   (x + 6)^2 + (y + 8)^2  = 100

10.  We have

( 3 - h)^2 + ( -1 - 7)^2  = 100  simplify

3^2 - 6h  + h^2 + 64  = 100

h^2 - 6h + 73  = 100

h^2 - 6h - 27  = 0     factor 

(h - 9) ( h + 3)  = 0

Setting each factor to 0  and solving for h  we have that  h = 9 or h = -3

It's 2. You use order of operations for this one. 

Multiplication comes before Addition and Subtraction. 

7-3*2+1

7-6+1

1+1

=2

Oxygen

German for "never ending"

Answer is 400

Resetting the modem and your router can help fix the network connection in some cases. 

Did I say that? I don't see that in the text....

I do not really know what is going with the website, but shutting your computer off does not work, and leaving the site and coming back on does not work either. Someone said to wait and see what happens, but I do not think that will do anything either. 

University of Alabama???? Roll Tide !!!

Sorry I just had to say that...I don't really know how to do this...

This reminded me of an episode of Mythbusters that I watched where they tested different methods of " cheating " a lie detector test, and I don't think any of them really worked. But I don't remember very well...

But I'm pretty sure that question is basically just this:

There are 100 people in a room. 15 of them have on a yellow shirt. 85 of them have on a blue shirt. You randomly select 9 people. What is the probability that all 9 of those people have on a blue shirt?

Say i am doing sin(106degrees) how would i explain what I am doing? Need to write it out and don't want to write "do sin" 

NO!!!

If we are given something like this:

sin (pi/ 3)  

We are looking for the sine of an angle with a radian measure of pi/3  [60 degrees]

So

sin (pi/3)  =  √3 / 2

thanks

 7x - 4 = 3x + 8

Add 4 to both sides.

7x = 3x + 12

Subtract 3x from both sides.

7x - 3x = 12

4x = 12

Divide both sides by 4.

x = 12/4

x = 3

Check: 7(3) - 4 = 3(3) + 8

            21 - 4 = 9 + 8

            17 = 17   true

The radius is 4   and the center is ( -6, -1)

So.....the last answer is correct

When the equation of a circle is written in this form:

(x – h)² + (y – k)² = r²

The center of the circle is located at the point (h, k) and r is the radius of the circle.

Based on the picture, it looks like the center is (3, -2) and the radius is 3.

So, the equation of this circle is:

(x – 3)² + (y – (-2))² = 3²

(x – 3)² + (y + 2)² = 9       which is the second option

Do you mean, "croissant??"

Alright, Thank you.

Ghosts in the machine.......wait a few minutes.....it might start working again....

I find a picture helps, here

Let BAC  = 47°

Note that angles ABO and ACO each  = 90°

So....the quadrilatral formed by ABOC  has interior angles that will sum to 360°

And  we  know three of the angles and we are trying to find angle BOC

So

47 + 90 + 90 + BOC  = 360    .......simplify

227 + BOC  = 360      subtract 227 from both sides

BOC  = 133

And since this is a central angle, it has the same measure as the arc we are interested in, namely, minor arc BC......so....the measure of the arc intercepted by the tangents = 133°

Just google it.

I just searched for " calculator " on google and the web2.0 scientific calculator is the first to come up (under the one provided by google). Then I saw the questions scrolling by right beneath it and that is how I found the forum.