Answered By Eddie P

60 =  $\sqrt{252d\left(0.72\right)}$√252d(0.72) 

=> 3600 = 252d(0.72)

=> d = 3600/[(252)(0.72)]

=> d = 19.841269...

Answered By Sosimo H

The clue to solving this equation is very simple.

Just elevate both members to the square 

(60)^{2    _{=  ( $\sqrt{ }$√ 252 d 181.44)}2}

Answered By Sosimo H

3600=d.181.44 ;

Answered By Sosimo H

_{$d=3600\div181.44=19.84$d=3600÷181.44=19.84} 

Answered By Mohammad Sadav Imtiaz A

60² = 252d(0.72)

     => 3600 = 181.44d

=> d = 3600 / 181.44   

therefore, d = 19.84