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Dimas [21]
3 years ago
15

Which size random sample is likely to provide the most trustworthy results

Mathematics
1 answer:
Zarrin [17]3 years ago
4 0
At least 30 observations to get a reasonably normal distribution.
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Find the arc length of AB⌢. Round your answer to the nearest hundredth.
gizmo_the_mogwai [7]

Answer:

3.14 ft

Step-by-step explanation:

The arc AB is the minor arc of the given circle. The length l of the minor arc of a circle is given as

l = Ф°/360° × 2πr

where

Ф is the angle of the arc at the center of the circle

r is the radius of the circle and

π is a mathematical constant equivalent to 22/7

r = 8/2 = 4 ft

Hence

l = 45°/360° × 2 × 22/7 × 4

= 22/7 ft

= 3.14 ft

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3 years ago
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kakasveta [241]
1/10.
2/5 is equal to 4/10
4/10 divided by .4 is .1
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irga5000 [103]

Answer: The answer is 7.

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In Europe, the speed limits on the highways are posted in kilometers per hour. In the United States, the speed limits are posted
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