Answer:
At least 547 records need to be studied.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence interval 
, we have the following confidence interval of proportions.
In which
Z is the zscore that has a pvalue of 
.
And the margin of error is:
95% confidence interval
So 
, z is the value of Z that has a pvalue of 
, so 
.
In this problem, we have that:
At least 547 records need to be studied.
Answer:
π\6
Step-by-step explanation:
The reference angle is the smallest angle measured from the terminal side of the angle (where the angle ends) to the x axis. The reference angle is an acute angle (i.e less than 90° or π/2)
For O = 11π/6 = 1.833π
1.833π is in the fourth quadrant between 3π/2 radians and 2π radians. Since it is in the fourth quadrant, the reference angle is given as:
reference angle = 2π - 11π/6 = π\6
Answer: Coeffcient is 17
Explaination:-
Given expression is :
17xy³z¹²
To find the coefficient of given expression
In mathematics, a coefficient is a multiplicative factor in some term of a polynomial, a series, or any expression; it is usually a number, but may be any expression.
For example : In 2x⁵
Coeffcient is 2
Now come to the question:
Coeffcient is 17.
Answer:
sqrt(35) ≈5.916079783
Step-by-step explanation:
sqrt(35)
35 = 5*7
Neither of these numbers is a perfect square so
sqrt(35) cannot be simplified
it can be approximated
sqrt(35) ≈5.916079783
