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Leokris [45]
3 years ago
14

How long does it take a golf ball to fall from rest to a distance of 10m. What would its speed be when it fell by 10m?

Mathematics
1 answer:
melomori [17]3 years ago
4 0
3.81 × 10<span>^8  times the weight of the Ball. I Think!? Not so sure. But that first part is the speed of gravity.So I know that will help. Or should, lol. 

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A random sample of 35 business students required an average of 50.7 minutes to complete a statistics exam. Assume that the popul
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Answer:

(47.3, 54.1)

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1 - 0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1 - \alpha.

That is z with a pvalue of 1 - 0.025 = 0.975, so Z = 1.96.

Now, find the margin of error M as such

M = z\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.96\frac{10.4}{\sqrt{35}} = 3.4

The lower end of the interval is the sample mean subtracted by M. So it is 50.7 - 3.4 = 47.3

The upper end of the interval is the sample mean added to M. So it is 50.7 + 3.4 = 54.1

The answer is (47.3, 54.1).

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3 years ago
Which statements about quadrilaterals are true?
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D)A rectangle is always also a parallelogram.
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3 years ago
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Jeff has two sticker-printing machines. Each machine can print 42 stickers per minute. On day 1, only the first machine was used
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Answer:

c 89+42x+42y

Step-by-step explanation:

On day 1 :

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On day 2 :

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Second Machine=?stickers ( if in 1min = 42stickers

y min=?

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Total = 89 + 42x + 42y

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Answer:

2. the figure has rotatinal symetry

Step-by-step explanation:

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If you would like further explanation let me know. :)
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