Answer:
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Answer: 4 feet (approx)
Step-by-step explanation:
Since, We know that the length of pendulum,

Where L is the length of pendulum
T is the period,
And, g is the gravitational acceleration.( g=9.8
)
Here, T= 2.2 seconds
Thus, Length of pendulum,
= 1.20268570733 meter
1 meter= 3.28 ( approx)
Thus L= 1.20268570733 ×3.28 feet =3.94480912005 feet ≈4 feet
Answer:

Step-by-step explanation:
From the question we are told that:
Percentage of Green beads 
Percentage of Red beads 
Percentage of Purple beads 
Therefore
Probability of choosing a Green bead is

Probability of choosing a Red bead is

Generally the equation for choosing a green bead then a red bead is mathematically given by
Since Outcomes are independent


0.62, 59%, and 3/4
these are all more than 50% which is what 1/2 is.