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Ugo [173]
4 years ago
7

The expression d/t can be used to find the average speed of an object that travel a distance d in time t. What is sc cars averag

e speed if it travels 145 miles in 2.5 hours?
Mathematics
1 answer:
Firlakuza [10]4 years ago
4 0
You just divide the distance travelled by the time like so: 145mi/2.5h and get 58mph. You can convert the 145mi into meters and 2.5h into seconds (145mi is approximately 233345m; 2.5h is 9000 seconds) and get an approximate speed of 26m/s if you want to convert to SI units.
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3 years ago
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Lyrx [107]

The mean, variance, and standard deviation are 1, 8,33 and 2.89

<h3>How to find the mean, variance, and standard deviation?</h3>

The distribution is given as:

[a, b] = [-4, 6]

The mean is calculated as;

Mean = (a + b)/2

So, we have

Mean = (-4 + 6)/2

Evaluate

Mean = 1

The variance is calculated as;

Var = (b - a)^2/12

So, we have

Var = (6 + 4)^2/12

Evaluate

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The standard deviation is calculated as;

SD= sqrt(Var)

So, we have

SD = sqrt(8.33)

Evaluate

SD = 2.89

Hence, the mean, variance, and standard deviation are 1, 8,33 and 2.89

Read more about uniform distribution at:

brainly.com/question/16238191

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8 0
2 years ago
I don’t know how to get this answer can somebody help ?
tankabanditka [31]

Answer:

31

Step-by-step explanation:

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8 0
4 years ago
What degree of rotational symmetry does an equilateral triangle have
ivann1987 [24]

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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:

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6 0
3 years ago
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