If r varies inversely as the square root of s and t, how ...
If r varies inversely as the square root of s and t, how does s vary with r and t?
s varies inversely as r and t2
s varies inverely as r2 and t
s varies directly as r2 and t2
s varies directly as r and t
Correct answer is B
r∝1√s,r∝1√t
r∝1√s ..... (1)
r∝1√t ..... (2)
Combining (1) and (2), we get
r=k√s×√t=k√st
This gives √st=kr
By taking the square of both sides, we get
st = k2r2
s = k2r2t
The graph represents the relation y = x2 - 3x - 3. What is the equation of the line of symmetry...
In the diagram, PQ//RS. Find x in terms of y and z ...
Evaluate 2log39×log381−2log5625...
A ladder 16m long leans against an electric pole. If the ladder makes an angle of 65o with the ...
What is the length of an arc of a circle that substends 212 radians at the centre when ...