Answer:
m∠A = 31
b = 13.3
Step-by-step explanation:
The seismic activity density of a region is the ratio of the number of earthquakes during a given time span to the land area
2 answers:
Answer:
The correct option is B) 0.0059 earthquakes per square mile.
Step-by-step explanation:
Consider the provided information.
It is given that seismic activity density of a region is the ratio of the number of earthquakes during a given time span to the land area affected.
If the there 424 earthquakes and the land area is 71,300 sq miles then find the seismic activity density for this state
This can be calculated by dividing the number of earthquakes with the land area.
Seismic activity density =
Here we need to round it to the nearest ten thousandth.
Thus the nearest ten thousandth is 0.0059
Hence, the correct option is B) 0.0059 earthquakes per square mile.
You might be interested in
Answer:
a) 68 % will lie between 30 and 44 ounces
b) between 23 and 44 ounces will lie 81,5 %
Step-by-step explanation: See Annex
a) Normal Distribution N ( 37, 7)
The Empirical Rule establishes that 68 % of values will be at
μ ± 1 σ where μ is the mean and σ the standard deviation
Then: 37 - 7 = 30 and 37 + 7 = 44
68 % of the values will lie between 30 and 44 ounces
b) And between 23 and 44 we should find:
We have 95 % of values between
μ ± 2*σ
In our case to the left of the value (mean 0 ) and up to the value 23 we get 95/2 = 47,5 % and to the right of the value (mean 0 ) and up to 44 we half 68/2 = 34 %
Then between 23 and 44, we have 47,5 + 34 = 81,5 %
