can anyone give me a suitable subtitle of a story in which a girl found an ancient magic ring which can make any person invisible at her ancient house
it's not any book story pls find it by yourself if you can and pls givs me an answer
Answers
Answer:
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10th
>Maths
>Pair of Linear Equations in Two Variables
>Pair of Linear Equations in Two Variables
>On comparing the ratios a1/...
Maths
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On comparing the ratios
a
2
a
1
,
b
2
b
1
and
c
2
c
1
, find out whether the lines representing the following pairs of linear equations intersect at a point, are parallel or coincident.
9x+3y+12=0;18x+6y+24=0
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Answer
Correct option is
C
Coincident
The given linear equation are
⇒9x+3y+12=0....eq1
⇒a
1
=9,b
1
=3,c
1
=12
⇒18x+6y+24...eq2
⇒a
2
=18,b
2
=6,c
2
=24
⇒
a
2
a
1
=
18
9
=
2
1
⇒
b
2
b
1
=
6
3
=
2
1
⇒
c
2
c
1
=
24
12
=
2
1
comparing
⇒
a
2
a
1
,
b
2
b
1
,
c
2
c
1
⇒
a
2
a
1
=
b
2
b
1
=
c
2
c
1
Hence,the line represented by eq1 and eq2 are coincidents
Answer:
"The magnificent Ring"