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MayFlowers
04.02.2020 •
Mathematics
A25-kilogram (245-newton) bag of sugar is lifted 3 meters. determine the work done.
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Ответ:
A work (W) is a product of a force (F) and a distance (d):
W = F · d
W = ?
F = 245N
d = 3m
W = 245N * 3m
W = 735 J
Ответ:
0.0136
Step-by-step explanation:
Given : Mean :![\mu=25](/tpl/images/0054/9625/0a545.png)
Standard deviation :![\sigma=3.2](/tpl/images/0054/9625/f8a65.png)
Sample size :![n=50](/tpl/images/0054/9625/7629d.png)
The formula to calculate the z-score :-
For x = 24
The p-value =![P(z\leq-2.21)= 0.0135526\approx0.0136](/tpl/images/0054/9625/dca42.png)
Hence, the probability that the sample mean age for 50 randomly selected women to marry is at most 24 years = 0.0136