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3 years ago

15

Kim has a living room that measures 12 feet by 12 feet. She wants to buy the largest circular area rug that she can find for the

room.
There are four rugs at a local department store. Which rug should she buy?

4 foot radius?

6 foot radius?

8 foot radius?

10 foot radius?

1 answer:

galina1969 [7]3 years ago

8 0

Answer: 10 foot radius

Step-by-step explanation:

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EastWind [94]

The perimeter is about 82 yards

first, the perimeter of the rectangles is 30*2 = 60 (the 7 is not a part of the overall perimeter so we do not need to add it)

the "perimeter" (circumference) of the 2 semi circles = (22/7)*7 = 22by using the formula C = pi*d (2 semi circles of the same diamter = 1 circle)

now just add the 2 answers
22 + 60

= 82 yards

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Establish the identity.<br> (2 cos 0-6 sin 0)² + (6 cos 0+2 sin 0)2 = 40

kogti [31]

Rewriting the left-hand side as follows,

$(2\cos\theta-6\sin \theta)^2 +(6\cos \theta+2\sin \theta)^2\\\\=4\cos^2 \theta-24\cos \theta \sin \theta+36 \sin^2 \theta+36 \cos^2 \theta+24 \cos \theta \sin \theta+4 \sin^2 \theta\\\\=40\cos^2 \theta+40 \sin^2 \theta\\\\=40(\cos^2 \theta+\sin^2 \theta)\\\\=40$

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julsineya [31]

Answer:

Her multiplication

Step-by-step explanation:

Not really an aexplanation

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Neporo4naja [7]

Answer:

6

Step-by-step explanation:

Because ⅔ goes into 3 ⅓ 6 times.

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