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GuDViN [60]
3 years ago
11

Elizabeth is going to flip a fair coin100 times. What is the best prediction for the number of times that the coin will land tai

ls up?
Mathematics
2 answers:
babunello [35]3 years ago
5 0
The best chance is 50
ki77a [65]3 years ago
5 0
It's a 50/50 chance.
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Which property was used to simplify the expression?
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What’s the expression???
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In the 2017 fiscal year, the state of Alaska received $8.2 billion In revenues and had $7.2 billion in expenditures. What percen
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To figure this out you can do 7.2/8.2, because you are trying to figure out how much of the total was used, and percentages would not be more than 100%. Doing this you would get ~.878. To convert this to a percent, you would just multiply it by 100, which would give you 87.8%. The question states to round to the nearest whole percent, leaving you with 88%. This means that 88% of the revenue was spent.

Hope that helped, don't be shy to comment on this if you have any questions about my explanation :)
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3 years ago
Work out the value of d when v=30
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Step-by-step explanation:

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According to a​ magazine, ​% of the​ world's solar energy cells are manufactured in one country. Consider a random sample of fiv
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The event x is a discrete random variable because the values of the random variable are countable and each possible outcome is equally likely

Step-by-step explanation:

A) Explaining why x is a discrete random variable

 The event x is a discrete random variable because the values of the random variable are countable and each possible outcome is equally likely. A discrete random variable is variable that contains a countable number of values contained in it and each value stands an equal chance i.e The probability of each value/outcome is between 0 and 1

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4 years ago
The length of a rectangle is a inches. Its width is 5 inches less then the length. Find the area and perimeter of the rectangle
Travka [436]

Answer:

Area = (a² -5a) in²

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Step-by-step explanation:

Let the length of the rectangle be a.

Given that, its width is 5 in less than the length.

So,

length ⇒ a

width ⇒ (a - 5)

First, let's find the area of the rectangle.

Area = length × width

Area = a ( a - 5 )

<em>Solve the brackets.</em>

Area = <u>(a² -5a) in²</u>

<u />

Now, let us find the perimeter of the rectangle.

Perimeter = 2 ( l + w )

Perimeter = 2 ( a + a - 5 )

Perimeter = 2 ( 2a - 5 )

Perimeter = <u>(4a -10) in</u>

3 0
2 years ago
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