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Musya8 [376]
3 years ago
7

Can someone find the length of the spine plss

Mathematics
1 answer:
morpeh [17]3 years ago
3 0

Answer:

48.2 cm

Step-by-step explanation:

The bottom side of the large triangle has length 78 cm.

The bottom side of the right triangle has length 78 cm/2 = 39 cm.

Now we use the Pythagorean theorem to find the vertical side, the spine.

39² + s² = 62²

s² = 3844 - 1521

s² = 2323

s = 48.2

Answer: 48.2 cm

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Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

The order of the students in the sample is not important. So we use the combinations formula to solve this question.

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C_{n,x} = \frac{12!}{4!(8)!} = 495

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