Using Pythagorean’s theorem, the side length is sqrt(89)
Using the normal distribution, it is found that the life span of an appliance that has a z-score of –3 is of 24 months.
<h3>Normal Probability Distribution</h3>
The z-score of a measure X of a normally distributed variable with mean
and standard deviation
is given by:

- The z-score measures how many standard deviations the measure is above or below the mean.
- Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.
In this problem, the parameters are given as follows:
.
Hence:


X - 48 = -24
X = 24.
The life span of an appliance that has a z-score of –3 is of 24 months.
More can be learned about the normal distribution at brainly.com/question/24663213
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<span>6 (a + b) = 6a + 6b
answer is </span><span>B) 6a + 6b </span>
Answer: i would help but i have no idea but i think its (a)
Step-by-step explanation:
add the a´s first then the b´s
Answer:
101
Step-by-step explanation: