Answer:
D 100% d
Step-by-step explanation:
It would be 400
Hope I helped
Since the chance of a flight being on time is 90%. The probability that all of Erica's flights will be on time is B 66%.
To answer the question, we need to know what probability is
<h3>What is probability?</h3>
This is the likelihood for an event to occur. It is given by
P(event) = number of required outcomes/total number of outcomes
Now, given that Erica's travel plans include 4 independent flights. The chance of a flight being on time is 90%. So, P(flight) = 90%. Since they are indepent, we multiply their probability.
<h3>Probability that all of Erica's flights will be on time</h3>
So, the probability that all of Erica's flights will be on time is P(on time) = P(flight) × P(flight) × P(flight) × P(flight)
= [P(flight)]⁴
= (90%)⁴
= (0.9)⁴
= 0.656
≅ 0.66
= 66%
So, the probability that all of Erica's flights will be on time is B 66%.
Learn more about probability here:
brainly.com/question/25870256
#SPJ1
<h3>
Answer:</h3>
5.3
<h3>
Step-by-step explanation:</h3>
The mnemoic SOH CAH TOA reminds you that ...
... Tan = Opposite/Adjacent
... tan(24°) = x/12
Then multiplying by 12 gives ...
... 12·tan(24°) = x = 5.34274 ≈ 5.3
