I guess it would be true because 100+95+85+80 = 360, and there are 360 degrees in a circle.
Answer:
The answer is "$238".
Step-by-step explanation:
Current worth
depreciates by
in 3 years.
time= 19 years
depreciates rate=?
Using formula:


calculates depreciate value in 3 year 

so,


depreciates rate= 20%


Answer:
2/5
Step-by-step explanation:
simplify by cross multiplying
34% of the scores lie between 433 and 523.
Solution:
Given data:
Mean (μ) = 433
Standard deviation (σ) = 90
<u>Empirical rule to determine the percent:</u>
(1) About 68% of all the values lie within 1 standard deviation of the mean.
(2) About 95% of all the values lie within 2 standard deviations of the mean.
(3) About 99.7% of all the values lie within 3 standard deviations of the mean.



Z lies between o and 1.
P(433 < x < 523) = P(0 < Z < 1)
μ = 433 and μ + σ = 433 + 90 = 523
Using empirical rule, about 68% of all the values lie within 1 standard deviation of the mean.
i. e. 
Here μ to μ + σ = 
Hence 34% of the scores lie between 433 and 523.
So you swap sides and you have 3x=93 and then you divide 3 by 93 and you get x=31