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Keith_Richards [23]
3 years ago
5

Geometry, Thanks if you help! question 3

Mathematics
1 answer:
timofeeve [1]3 years ago
5 0

Answer:

A

Step-by-step explanation:

Using Pythagoras' identity on the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

t² + 12² = 13²

t² + 144 = 169 ( subtract 144 from both sides )

t² = 25 ( take the square root of both sides )

t = \sqrt{25} = 5 → A

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The diagram shows the floor plan of a hotel lobby. Carpet costs $3 per square foot. How much will it cost to carpet the lobby?
pickupchik [31]
If you were to take both halves of the carpet and place them on top of each other you can see that the two triangle sections would cover each over up and fill in to make a rectangle. So first, lets compute the size of the middle section, then we will compute the size of the end pieces.

The center section of the carpet is 30 ft x 31 ft = 930 sq ft

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Since there are two side to the carpet like this we multiply this by 2
186 * 2 = 372 sq ft

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4 years ago
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3 years ago
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kicyunya [14]

Answer:

In the explanation. :)

Step-by-step explanation:

Find the exact value using trigonometric identities.

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Hope this helps. Have a great day!

6 0
4 years ago
12a^7 b^8+2ab^5-6ab^7=<br> factor completely
hjlf

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4 years ago
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Sliva [168]

Answer:

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