The function L = 0.8T^2 models the relationship between L, the length in feet of a pendulum, and T, the period in seconds of the pendulum. Which value is closest to the period in seconds for a pendulum that is 30 ft long?
The correct option is "d". Given that L = 0.8T² length of pendulum = 30ft
L= 0.8T² 30 = 0.8T² T² = 30 / 0.8 T² = 37.5 T = √37.5 = 6.1 seconds So, 6.1 is the closest to the period in seconds for a pendulum that is 30 ft long.
