A square barn measures 40 feet on each side.
1 answer:
Answer:
616 sq. feet and it will be a quarter circle.
Step-by-step explanation:
A square barn measures 40 feet on each side. A goat is attached to one corner of the barn by a rope that is 28 feet long.
See the attached diagram.
Now, A is the corner where the rope is attached.
So, the area where the goat will be able to graze in the area AEF which is nothing but a quarter circle as ∠ EAF = 90°.
So, the area of the quarter circle will be sq. feet. (Answer)
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Answer:
At 5% significance level, it is statistically evident that there is nodifference in the proportion of college students who consider themselves overweight between the two poll
Step-by-step explanation:
Given that a poll was taken this year asking college students if they considered themselves overweight. A similar poll was taken 5 years ago.
Let five years ago be group I X and as of now be group II Y
(Two tailed test at 5% level of significance)
Group I Group II combined p
n 270 300 570
favor 120 140 260
p 0.4444 0.4667 0.4561
Std error for differene =
p difference = -0.0223
Z statistic = p diff/std error = -1.066
p value =0.2864
Since p value >0.05, we accept null hypothesis.
At 5% significance level, it is statistically evident that there is nodifference in the proportion of college students who consider themselves overweight between the two poll