1st one is AZ for the allitude
2nd one is BX for the median i think
For this case what you must do is to determine the value of r of the given equation:
A = pi * r ^ 2.
Clearing the value of r we have:
r = root (A / pi)
Note that r has two roots:
r1: = + root (A / pi)
r2: = - root (A / pi)
In this case we must ignore the negative root.
Answer:
The formula to find r is
r = root (A / pi)
Answer:
Step-by-step explanation:
<u>Question 1</u>
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Given integral:
Using <u>Integration by parts</u>:
Therefore:
<u>Question 2</u>
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Rewrite the given integral:
Use the trig identity to rewrite :
<u>Integration by substitution</u>
Therefore:
Finally, substitute back in:
Graph the equation in a graphing calculator or in the table in a regular calculator and look for the zero on the x axis and the y axis