Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
joe
Make n the subject of n/2 -m =r?
The way I did it ,
N/2 -m =r
N/2=r +m
N=2(r+m)
Is this right ?
3 AnswersMathematics6 years agoHow to solve the simultaneous equation : X=2y+1 , x=y^2+3y .?
OK so ,
2y+1=y^2+3y
= y^2 +3y-2y-1
= y^2+y-1 , the next step would be to factorise but neither
(Y+1)(y-1) ,or
(Y-1)(y+1) work , they both end up as :
Y^2 -1
HELP me please ;(
4 AnswersMathematics6 years agoHow to solve the simultaneous equation. : y=3x-1 , x^2 + y^2 =1?
I move y=3x-1 over giving me
X^2 + (3x-1)^2 =1 I sort it out so I gets to
10x^2 -6x+1 =1 but then when I move the =1 over to factorise it gets rid of the +1 leaving me with
10x^2 -6x
I m either being dumb or You can t factorise this , help me please ?.
Ps I can do the previous questions ie
Y=2x+3 , x^2 +y^2 =2
3 AnswersMathematics6 years ago