Answer: i think it might be 1.5s and 42ft but i'm not positive that answers correct
Step-by-step explanation:
Answer:
6.28
Step-by-step explanation:
The length of arc which subtends an angle 
at the center of a circle is given by 
where r is the radius of circle.
______________________________
given
the central angle of arc is 120°
we will use value of 
as 3.14
r = 3
Length of this arc is
The length of the arc to the nearest hundredth of unit is 6.28
The least is 45 bc it is less than the other 2
Answer:
The minimum score necessary to be in the top 10% of the distribution is 628.
Step-by-step explanation:
Given that a normal distribution has a mean of μ = 500 and a standard deviation = σ= 100
The Significance level for this test = 10 % = 0.1
For one tailed test ∝= 0.1 the value of Z∝= ±1.28
Since it a normal distribution the test statistic used is
Z= X= u / σ/√n ( taking n= 1)
1.28 = X- 500/100/√1
128 + 500 = X
or X = 628
The minimum score necessary to be in the top 10% of the distribution is 628.
