Posted by Helpless in Math on Sunday, May 27, 2007 at 9:53am.
1. (2x-6)/(21) divided by (5x-15)/(12)
2. Solve (x)/(x-9)-4=(9)/(x-9)..I got -6, is that correct?
3. Add. Express your answer in simplest form...(4)/(s)+(6)/(s^2)..
4. Add. Express your answer in simplest form...(x^2)/(x+4)+(8x+16)/(x+4)
Lets check you number 2)
-6/(-15) - 4= 9/(-15)
-3 7/15 does not equal -9/15
Show your work. You wont find many here that will do these for you.
On question #1, you multiply the first number by the inverse of the other.
(2x-6)/21 * 12/(5x-15)
Question 2 seems impossible to me. But I might be doing it wrong...it's almost midnight here.
I subtracted the (x)/(x-9) on both sides and came up with the equation:
-4 = (9-x)/(x-9) No matter what you plug into there, it will be -1. And
-4 does not equal -1.
Wait for someone else's confirmation on that though.
On question #3, here's a hint. If you multiply something by 1, it will still stay the same. s/s = 1. See what you can do with that.
#4 - add the numerators straight across. You MAY be able to factor it out and get rid of the denominator. You'll have to try it out to see.
As you post your work, we can critique it.
Answer This Question
More Related Questions
- algebra 2 - Would some one look at these problems and see if I got them right ...
- math, correction - Add or subtract as indicated. Express your result in simplest...
- math,correction - Geometry. Find the perimeter of the given figure. tHE Figure ...
- math,correction - Problem #1 subtract. Express your answer in simplest form (3x...
- please help solve algebra problem - add, express answer in simplest form 4x/x^2-...
- Algebra - Would someone please check these answers? Simplify. 3/x-5+1/1-4/x-5 ...
- Algebra - Add and subtract the rational expressions as indicated. Be sure to ...
- Algebra - Can someone verify if my answers are correct? Solve. 1/x+6-1/x-6 My ...
- Algebra - 1.Solve (x)/(x+10)+(x-3)/(x+2)=7/5..I got that there is no solution, ...
- math,help - I also need help with this one: Add. Express answer in simplest form...