Answer: n = 14
Step-by-step explanation: margin of error = critical value × σ/√n
Where σ = population standard deviation = 1
n = sample size = ?
We are to construct a 99% confidence interval, hence the level of significance is 1%.
The critical value for 2 tailed test at 1% level of significance is gotten from a standard normal distribution table which is 2.58
Margin of error = 0.7
0.7 = 2.58×1/√n
0.7 = 2.58/√n
By cross multipying
0.7×√n = 2.58
By squaring both sides
0.7^2 × n = 2.58^2
0.49 × n = 6.6564
n = 6.6564/0.49
n = 14
The answer for your question is B
Answer:
2.09.ft/min
Step-by-step explanation:
There is a formula for the linear velocity using rpm:
V = (2π)/60 * r * rpm
V = (2π)/60 * 2ft * 10 = 2.09ft/min
Answer:
A polynomial with complex coefficients of degree n has n complex roots, counted with multiplicity.
Step-by-step explanation:
We are given a polynomial p(x) in the question with degree n.
The degree n means the n is the highest power of variable in the given polynomial.
The equation:

Fundamental theorem of Algebra
- The Fundamental theorem of Algebra states that a a polynomial of degree n will have n roots of the equation.
This can further be explained as:
- A polynomial with complex coefficients of degree n has n complex roots, counted with multiplicity.