Your friend found the period of a 100-foot long pendulum to be 9.5 seconds. His work is shown below. Find the error and explain what your friend
did wrong. Find the correct period for the 100-foot long pendulum.
T = 1.1VT
100 = 1.1VT
90.9 - Vi
L - 9.5 sec

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

its kind of blurry. can you put a clearer pic?

step-by-step explanation:

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

idk

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