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barxatty [35]
3 years ago
13

You know you have six pennies, 4 nickels, 1 quarter, and 7 dimes. If you reach into your pocket and randomly pick a coin what is

the probability that you pick a dime or a nickel
Mathematics
1 answer:
bixtya [17]3 years ago
3 0
6 pennies, 4 nickels, 1 quarter, and 7 dimes is a total of 18 coins. Out of those 18 coins, dimes and nickels make up 11 of them.

So the probability that you pick a dime or nickel is 11/18 or about 61.11%.
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Scores on a dental anxiety scale range from 0​ (no anxiety) to 20​ (extreme anxiety). The scores are normally distributed with a
solniwko [45]

Answer:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

Step-by-step explanation:

The following information is missing in the question:

We have to find z-score for the given score on this dental anxiety scale: 12, 6

We are given the following information in the question:

Mean, μ = 11

Standard Deviation, σ = 4

We are given that the distribution of score is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

where x is the given score on this dental anxiety scale.

For x = 12

z_{score} = \displaystyle\frac{12-11}{4} = 0.25

For x = 6

z_{score} = \displaystyle\frac{6-11}{4} = -1.25

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3 years ago
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7 0
3 years ago
Find the domain and range of radical function
Tju [1.3M]

The radical function is 3√x + 1.

Since the cubic root of zero is zero, 0 would be x.

Add zero and one, which gives you 1. 1 is y.

You get (0,1)

Since this is a positive radical, it would be going to the top right.

So, the domain is x ≥ 0

the range is y ≥ 1

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FromTheMoon [43]

Answer:

6:8 and 9:12

Step-by-step explanation:

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The equation below has one solution.
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The solution is 2
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