H(t) = -16t2 + 186t + 43
at the ground h = 0
hence; -16t2 + 186t + 43 = 0
solving this quadratic equation using the quadratic formula ; a = -16, b = 186, c = 43 ; x = (-b +-(b2 - 4ac)1/2)/2a
gives t = 11.8 seconds to the nearest tenth (note that the negative root has no practical significance)
300 + 60 + 5 + 0.2 + 0.05 = 365.25
hope it helped :)
Answer:
7.92
Step-by-step explanation:
0.99*8=7.92
Answer:
It is c
Step-by-step explanation:
Total students = 375 + 405 = 780
boys % = (375 / 780) *100%
=48.1 %
