All Answers 358099 Answers

thank u so much melody !

Thank You So Much CPhill!

I Needed That,

Very good Explaining too!

How I've seen some forums do it is when you go to the forum, the first "question" that appears is the sticky topic, and then all other questions that people post go below that.

That way, if people are just posting a question without looking around on the site too much, they will see that sticky before they post something.

I'm not sure if you have this capability on this site, but I think this would work well for our current predicament.

Thanx for that link, reinout.....!!!

Let me know if that works for you.

Otherwise, I'd be more than happy to help you out.

This one is similar to this one that I just worked  →  -1/2(b)-3=>9......look at that answer and see if you can work through this one......you won't learn anything just by looking at our work.......

Oh um thank you very much mate

I don't mind solving the question, but I think that if you read this page once, you'll always be able to solve these and it will make your life a lot easier 

Remember the rule of exponents here......  aⁿ / a^m   =   a^n-m

So ...if I had......  5⁶/5²   ...it would equal........  5^6-2  =  5⁴

Now...see if you can do yours, based on this....if not.....let me know.....

(-1/2)(b)-3 ≥ 9       Add 3 to both sides

(-1/2)b ≥ 12          Multiply both sides by -2 and reverse the inequality sign (we must always do this when multiplying or dividing an inequality by a negative).....so we have....

b ≤ -24     Let's check this in the original problem by choosing some number less than or equal to -24 ...... -30 should work, if we're correct !!

(-1/2)(-30) - 3  ≥ 9

15 - 3  ≥  9

12 ≥  9

Yep....it looks OK !!!

This is information about making sure questions are very clearly written.

Here's 20

Center (1,2)   Point (0,6)   So....we can find the radius using the distance formula

r = √[(1-0)^2  + (6-2)^2] = √[(1) + 4^2] = √[1 + 16] = √17

So...we have

(x-h)^2 + (y-k)^2 = r^2     where (h,k) is the center  and r is the radius

(x-1)^2 + (y-2)^2  = 17

9c + 4 ≤ 22        Subtract 4 from both sides

9c ≤ 18              Divide both sides by 9

c ≤ 2

And that's it......

I actually used WolframAlpha....we could try some synthetic division - plugging in all the possible factors of 21 over all the possible factors of 4 ... this could be a little time consuming. However, I see that 1 is not a root, so I might test -1...so we have....

-1     4   -15        2        21

               -4       19     -21

        4     -19      21        0

So....-1 is a root....and we have the 2nd degree polynomial ......4x^2 -19x +21

Factoring this, we have   (4x -7) (x-3)

So, the factorization is   (x+1)(4x-7)(x-3)

Sorry for not being more thorough the first time, but I was in a hurry  !!!

If You Aren't too Busy Can You Show me #20 On the Same Page?

I Would Be very Happy With Any More Help!

Haha yeah I had that too, but if you try again it'll send you through.

You have a great day too 

Oh, How odd!

I Clicked on that link and It Said Session Unavailable?

I wont Sweat it :)

Have a Greate Day!

Yeah now that you say it; 

you wrote

What you Mean?

I know I Tried to Copy and Paste the Link to Test it Out...And it Referred Me to the Correct link, You Just Had to Type In the Number?

Maybe i Copied it wrong.

That's all right,

I wouldn't have known how else you could've referred me to that page.