Question 537350
reminder:  this is algebra.com...not calculus.net


the distance between the two is the diagonal of a box whose dimensions are
___ length ___ 130 + 280t
___ width ___ 70t
___ height ___ 7


t is the time after 11:00 , don't mix hrs and mins


the diagonal of a box (rectangular prism) ___ D^2 = L^2 + W^2 + H^2


find D as a function of t and differentiate