Answer:
Answer #3 please {}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}
2 answers:
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We have events:
- a <span>student stays in the school's dormitory
- </span>a <span>student stays with family
- </span><span>a student receives As
and </span> probabilities:
We want to calculate the probability <span>that the student lives in the school dormitory given he </span><span>receives As so it will be </span>
. From the <span>Bayes' theorem we know that:
The only thing we don't know is
, but we can calculate it using the l</span><span>aw of total probability. There will be:
So our probability:
Answer D.
</span>
and </span> probabilities:
We want to calculate the probability <span>that the student lives in the school dormitory given he </span><span>receives As so it will be </span>
The only thing we don't know is
So our probability:
Answer D.
</span>
Answer:
7.0 m/s
Step-by-step explanation:
We can solve this using the 2 kinematic equations and you can use either:
So let's use the first one.
Vi = initial velocity
Vf = final velocity
a = acceleration due to gravity (constant 9.8m/s²)
t = time
The marble is dropped so this means that it is in free fall. The initial velocity is always 0m/s.
We are given then the following:
d = 2.5m
t = 0.71s
Vi = 0 m/s
a = 9.8m/s²
So we plug in the values we know and solve: