On planet zorba, a solar blast has melted the ice caps on its equator. 8 years after the ice melts, tiny planetoids called echina start growing on the rocks. echina grows in the form of a circle and the relationship between the diameter of this circle and the age of echina is given by the formula
d = 4 * sqrt (t – 8)for t = 8
Where the represents the diameter in mm and t the number of years since the solar blast.
Jagan recorded the time of some echina at a particular spot is 24 years then what is diameter?

a) 8 b) 16 c) 25 d) 2

• t=24
  D = 4*sqrt(24 - 8)
  D = 4*sqrt(16)
  D = 4*4
  D = 16
• 9 years agoHelpfull: Yes(4) No(0)
• x= sqrt 1-8) = sqrt - 7 = 2.645751i
• 4 years agoHelpfull: Yes(0) No(0)
• x= sqrt 1-8) = sqrt -7 =2.545751i
• 4 years agoHelpfull: Yes(0) No(0)