The answer is B, you’re welcome
if the mean is 70 minutes, then 90 minutes is 2 standard deviations above 70. if you look at the bell curve i drew, the percent of exams that took over 90 minutes is 2.5%
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Answer:
not sure
Step-by-step explanation:
To find the area, you must use this equation:
A=πr^(<span>2)
</span>π=3.14 r=3<span>
Here are the steps:
1) </span>π(3^2<span>)</span>2) A=28.27
Answer:
See the answers below
Step-by-step explanation:
Given data
Dimension of the field
Length = 100m
Width= 52.5m
A). Perimeter fencing= 2L+2W
P= 2*100+ 2*52.5
P= 100+ 105
P = 205m
B. Area= L*W
A= 100*52.5
A= 5250m^2
