Math, asked by ishpreet6, 1 year ago

answer this question please!!!^_^

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Answers

Answered by Kkashyap
2
Using distance formula
=>(10-2)^2+(y+3)^2=10^2
=>(y+3)^2=(6)^2
=>y+3=+6 or y+3=-6
=>y=3. or y=-9

ishpreet6: thnq so much ....for helping me
Answered by Ama02
1
distance formula=root((x2-x1)^2+(y2-Y1)^2)

                          10  =root((10-2)^2+(y--3)^2)

                        10    =root(8^2+(y^2+6Y+9))

                         10   =root(64+y^+6y+9)

                           squaring both sides

                         100=73+y^2+6y

                          Y^2+6y-27=0

                        Y^2+3y-9y-27=0
               
                         y(y+3)-9(y+3)=0

                          (y-9)(y+3)=0

              therefore y=9or y=-3

hope it helped you

                        

ishpreet6: thnq sooo much..... for answer......
ishpreet6: :-)
Ama02: you are wlcome text me for more help
Kkashyap: U are wrong in third last step
Ama02: Where
Ama02: No it is correct
Kkashyap: Put the value in eq.
Kkashyap: Y^2+6Y-27=0.then how after that Y^2-9Y+3Y-27=0?
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