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Answer:
The approximate length of the pendulum is 46.08 ft
Step-by-step explanation:
The time (t) of pendulum oscillation is given as;

where;
L is the length of the pendulum
g is acceleration due to gravity = 9.8 m/s² = 32.15 ft/s²
t is the time given as 2.4 π seconds
From the equation above, make L the subject of the formula;

Therefore, the approximate length of the pendulum is 46.29 ft
The closest option is 46.08 ft
Answer:
x = 38
Step-by-step explanation:
The chord- chord angle HWO is half the sum of the arcs intercepted by the angle and its vertical angle, that is
(x - 2 + x + 6) = 40 ( multiply both sides by 2 to clear the fraction )
2x + 4 = 80 ( subtract 4 from both sides )
2x = 76 ( divide both sides by 2 )
x = 38