Question

it is given that D is inversely proportional to square root m and d=64 when m=9.find the value of d when m=4
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Answer 1

Answer:

solved

Step-by-step explanation:

d = k/√m ,   k = d√m = 64x3 = 192

d = 192/√m

d = 192/2 = 96

Answer 2

we know that D is directly proportional to sqare root means √9

we find value of d

so, D×√m=D¹√m¹= k (means constant)

A/c to q

putting the value of given d and √ m

so,64×√9=D×√4

64×3=D×2

D=64×3 by 2

D = 32×3

D = 96