Answer:
Below.
Step-by-step explanation:
4x^2 - 4x - 1 = 0
This will not factor.
But 4x^2 - 4x + 1 = 0 will:
= (2x - 1)(2x - 1) = 0
x = 0.5 (*2)
Using the z-distribution, the confidence interval is given by: (11.95, 12.65).
<h3>What is a z-distribution confidence interval?</h3>
The confidence interval is:
In which:
- is the sample mean.
- is the standard deviation for the population.
In this problem, we have a 90% confidence level, hence, z is the value of Z that has a p-value of , so the critical value is z = 1.645.
The other parameters are given as follows:
Hence the bounds of the interval are:
More can be learned about the z-distribution at brainly.com/question/25890103
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Answer:
$54.25
Step-by-step explanation:
50.75 + 2.50 - 3.25 - 1.75 + 1.25 + 4.75 = ?
54.25
Answer:
no if your account got suspended it means you have been banned for a while not forever
Step-by-step explanation: