Answer: 28x+42y=3
Step-by-step explanation:
Given: The point (x,y) is equidistant from the points .
By distance formula the distance between is
Similarly, the distance between is
Since,
The probability that a worker chosen at random works at least 8 hours is Option C: 0.84 approx.
<h3>How to evaluate the probability of a random variable getting at least some fixed value?</h3>
Suppose the random variable in consideration be X, and it is discrete.
Then, the probability of X attaining at least 'a' is written as:
It is evaluated as:
The probability distribution of X is:
x f(x) = P(X = x)
6 0.02
7 0.11
8 0.61
9 0.15
10 0.09
Worker working at least 8 hours means X attaining at least 8 as its values.
Thus, probability of a worker chosen at random working 8 hours is
P(X ≥ 8) = P(X = 8) + P(X = 9) +P(X = 10) = 0.85 ≈ 0.84 approx.
By the way, this probability distribution seems incorrect because sum of probabilities doesn't equal to 1.
The probability that a worker chosen at random works at least 8 hours is Option C: 0.84 approx.
Learn more about probability distributions here:
brainly.com/question/14882721
Looking at your "<span>16 -3/4," I see only one possibility: "combine the following."
</span><span>16 -3/4 is the same as 15 + 4/4 - 3/4, or 15 1/4.
Similarly, 16 - 0.75 = 15.25 = 15 1/4.</span>
Answer:
4 hours
Step-by-step explanation:
2.5t = 10
Divide both sides by 2.5
10/2.5 = 4
t = 4
(t represents time)