Answer:
7pi or ≈21.98 cm²
Step-by-step explanation:
The area of the shaded and non shaded in the circle is pir^2 so pi3^2 so 9pi
the area of the 2 smaller circles is pi1^2*2 so 2pi
9pi-2pi=
7pi cm² =
7pi≈21.98 cm² (with pi as 3.14)
Answer:
20/8 or 5/2
Step-by-step explanation:
5/8 times 4/1
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Answer:

Step-by-step explanation:
<u>Fundamental Theorem of Calculus</u>

If differentiating takes you from one function to another, then integrating the second function will take you back to the first with a constant of integration.
Given indefinite integral:

Rewrite 9 as 3²:

<u>Integration by substitution</u>



Find the derivative of ln x and rewrite it so that dx is on its own:



<u>Substitute</u> everything into the original integral:

Take out the constant:







Learn more about integration by trigonometric substitution here:
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