The value of alpha is 0.26, assuming a confidence level of 74%.
<h3>What is the margin of error?</h3>
The significance level α is the probability of making the wrong decision when the null hypothesis is true.
Alpha levels which is also called as significance levels are used in hypothesis tests.
Given
When finding the margin of error for the mean of a normally distributed population from a sample.
The confidence interval = 74% = 0.74.
The value of the alpha is given by;

Substitute all the values in the formula

Hence, the value of alpha is 0.26, assuming a confidence level of 74%.
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What number are we going to compare bro?
The sum of the measures of the angles is 180 degrees.
75 + -5w + 125 + 4w + 85 = 180
Combine like terms.
285 - w = 180
Subtract 285 from both sides.
-w = -105
Divide both sides by -1.
w = 105
None .. theres no solution
1)
is simplified into 
2)
is simplified into 
3)
is simplified into 
4)
is simplified into 
5)
is simplified into 
Step-by-step explanation:
We need to solve the polynomials.
1) 
Solving:

So,
is simplified into 
2) 
Solving:

Expanding:

So,
is simplified into 
3) 
Solving:

Expanding:

So,
is simplified into 
4) 
Solving:

Expanding:

SO,
is simplified into 
5) 
Solving:

Expanding:

So,
is simplified into 
Keywords: Solving Polynomials
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