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BlackZzzverrR [31]
3 years ago
5

Select all the correct answers. will mark brainliest for correct answer pls take ur time

Mathematics
2 answers:
dmitriy555 [2]3 years ago
7 0

Answer:

true b c e

false a d f

Step-by-step explanation:

no explanation

Daniel [21]3 years ago
4 0

Answer:

I think it's B, C, E

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Answer:

Side lengths = 1.68 ft and width = 3.36 ft.

Step-by-step explanation:

Let the side lengths of the window be L and the width = 2r ( r is also the radius of the semi-circle).

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2L = 12 - 2r - πr

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A = r(12 - 2r -  πr) + 0.5πr^2

A = 12r - 2r^2 -  πr^2 + 0.5πr^2

A =  12r - 2r^2 - 0.5πr^2

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Finding the derivative and equating to zero:

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So the  width of the window = 2 * 1.68 = 3.36 ft.

Now  2L = 12 - 2r - πr

=  12 - 2*1.68 - 1.68π

= 3.36

L = 1.68.

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