<span>No simplification exists, Root remains :
</span>sqrt(15y)
Answer:
Step-by-step explanation:
Given
Required
Find x
When the result is 4.4, we have:
This gives:
Divide both sides by 2
Square both sides
When the result is 4.5, we have:
Divide both sides by 2
Square both sides
So, the value of x is between 4.84 and 5.0625
i.e.
The only integer between the above interval is 5.
Hence:
Answer:
n = 66 (to the nearest whole number)
66 randomly selected players must be surveyed
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
x+/-zr/√n
x+/-M.E
M.E = zr/√n
Making n the subject of formula;
n = (zr/M.E)^2 ........1
Given that;
Mean = x
Standard deviation r = 2.7 inches
Number of samples = n
Confidence interval = 95%
z(at 95% confidence) = 1.96
Margin of error M.E = 0.65 inches
Substituting the given values into equation 1;
n = (zr/M.E)^2
n = (1.96×2.7/0.65)^2
n = 66.28464852071
n = 66 (to the nearest whole number)
66 randomly selected players must be surveyed
It takes 14448 seconds to take a ball to fall from 1204 feets.
you do, 1204 times 12
Answer:
∠BEC = 50°
Step-by-step explanation:
For better understanding of the solution, see the attached figure of the problem :
Minor arc BD = 94
Minor arc AC = 166
Now, the angle formed by the intersection of the two chords is ∠BED
And, the angle formed by the intersection of two chords is half the sum of angle measures of the corresponding chords.
Now, ∠BED + ∠BEC = 180 ( Adjacent angles )
⇒ ∠BEC = 180 - 130
⇒ ∠BEC = 50°