Answer: Our required probability is 0.11.
Step-by-step explanation:
Since we have given that
Number of workers in first shift = 21
Number of workers in second shift = 15
Number of workers in third shift = 13
We need to find the probability of choosing exactly two second shift workers and two third shift workers.
So, it becomes,

Hence, our required probability is 0.11.
sinθ = opp. / hyp.
sinθ = 11 cm / 35 cm
sinθ = 0.3142857
θ = 18.31769841°
Therefore, the missing angle is approximately 18°
The time has to be greater than 0, and positive.
Meaning its B, because its not negative and is greater than 0.
Answer : 32
( angles of a triangle add up to 180)
Line them all up by 100th, 10ths and Ones Place! Hope that this helps you