Answer:
B
Step-by-step explanation:
The slope is -2/1
TO write the function into vertex form, we need to add one zero and the solution is shown below:
f(x)= x² -6x +1
Add one zero in the form of -9 and 9, such as:
f(x) = x² -6x +1 -9 +9
f(x) = (x² -6x +9) +(1-9)
f(x) = (x-3)² + (-8)
f(x) = (x-3)² - 8
This is the vertex form of the given function and only one zero is being added.
Considering the situation described, the appropriate null hypothesis is given by:
<h3>What are the hypothesis tested?</h3>
At the null hypothesis, it is tested if the proportion is the expected one, that is, of 9%, hence:
At the alternative hypothesis, it is tested if there is enough evidence to conclude that the proportion is above 9%, hence:
.
More can be learned about an hypothesis test at brainly.com/question/26454209
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Answer:
27
Step-by-step explanation:
Answer:26°
Step-by-step explanation: