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raketka [301]
2 years ago
6

In a survey at a local university, 38% of students say that they get less than the recommended eight hours of sleep per night in

a group of 4500 students, how many would you expect get eight or more hours of sleep per night?
Mathematics
1 answer:
Sever21 [200]2 years ago
3 0

Answer:

2790

Step-by-step explanation:

38/100 * 4500 = 1710 get less than eight hours of sleep

4500 - 1710 = 2790 students

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Circumference's formula is: 2πr

Since π is not added in the total (as it is 28π), just divide 28 with 2 to get r

28/2 = 14

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6 0
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aleksley [76]

Answer:

The answr is 102 degrees. Here's why

Step-by-step explanation:

The square means the angle is 90 degrees. Therefore, for the big triangle, we already know 2 of the degrees, 50 and 90. A triangle's degrees add up to 180. 50+90=140. 180-140=40. This means the top angle is 40. Now finding X is easy, because we already know the other 2 points in the triangle, which are 38 and 40. Add those up, you get 78. 180-78=102, your answer. The triangle is 102 degrees.

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2 years ago
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jolli1 [7]

Answer:

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\frac{4+k}{2}

Now, we'll subtract 8 from it.

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Answer:

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