The function LaTeX: L=.8T^2 L = .8 T 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 feet long?
1 answer:
6.1 seconds.
In the equation L=0.8T², we will substitute 30 for L:
30 = 0.8T²
Divide both sides by 0.8:
30/0.8 = 0.8T²/0.8
37.5 = T²
Take the square root of both sides:
√37.5 = √T²
6.1 = T
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