81x^4 write as a square
2 answers:
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Answer:
(c) 43.
Step-by-step explanation:
Given:
Margin of error (E) = 2
Sample variance = 44
Confidence level = 95%
The z- value at 95% confidence level is 1.96.
The sample using the provided information can be calculated as:
Hence, the correct option is (c) 43.
When a function is reflected, it must be reflected over a line
The new function is:
The equation is given as:
The rule of reflection over the y-axis is:
So, we have:
Rewrite as:
Hence, the new function is:
Read more about reflections at: