(Q11)Find a rational expression for the ratio of the surface area of a cylinder to the volume of a cylinder, where the height is h and the radius is r. Q12) then find the ratio when the radius is 3 and
the height is 10
(Surface area=2rr2 + 2nrh)(Volume=nra)

current in the circuit at time t is /, then the power delivered to the resistor is

step-by-step explanation:

46

step-by-step explanation:

given

height = 168 cm

formula

height =2.47*f+54.13

solution

168 = 2.47f + 54.13             subtract 54.13 from both sides

168 - 54.13   = 2.47f             combine

113.87 = 2.47f                     divide by 2.47

113.87 / 2.47 = f                   combine

46.1 = f  

answer: 46 cm