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
<span>So, 6.1 is the closest to the period in seconds for a pendulum that is 30 ft long.</span>
What is equivalent to 9?
9/1 = 9
9/1 is equivalent to 9.
Answer: makes it a function if it is straight or if no points touch and if it has a constant rate of change
Step-by-step explanation:
The is 12 I think hope that helps