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weqwewe [10]
3 years ago
12

which is the area of a circle with a radius of 2 units? (use 3.14 for ) 6.28 square units 12.56 square units 25.12 square units

40 square units
Mathematics
1 answer:
lys-0071 [83]3 years ago
6 0
The area of the circle can be formulated as A = πr². So if the radius is 2 units, then you simply use it and multiply everything. 

First you substitute the data:

A = πr²
A = (3.14)(2)²

Then multiply everything and get to the answer of A = 12.56 square units

Thus, the answer is 12.56 square units. 
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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In the question, we are asked to use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine cos⁴ θ.

We can do it as follows:

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= [ 3 + 2cos 2θ + cos 4θ]/8.

Thus, the expression cos⁴ θ in terms of the first power of cosine is <u>[ 3 + 2cos 2θ + cos 4θ]/8</u>.

Learn more about reducing trigonometric powers at

brainly.com/question/15202536

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Ur right it is always that
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