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3 years ago

Helpppppppppppppppppppppppppppp

Mathematics

2 answers:

elena-s [515]3 years ago

8 0

$Given : \sqrt{64}$

$\implies \sqrt{64} = \sqrt{8\times8} = \sqrt{8^2} = (8^2)^\frac{1}{2} = 8^\frac{2}{2} = 8$

$Hence : \sqrt{64} = 8$

nevsk [136]3 years ago

4 0

1. Write the number in exponential form with a base of 8.

2. Reduce the index of the radical and exponent with 2.

3. Your answer is 8

I hope this helps☺

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Using a six-sided die, you have rolled a 6 on each of four successive tosses. What is the probability of rolling a 6 on the next

ollegr [7]

Answer:

The probability of rolling a 6 on the next toss = 1/6

Step-by-step explanation:

Given - Using a six-sided die, you have rolled a 6 on each of four successive tosses.

To find - What is the probability of rolling a 6 on the next toss?

Proof -

As the outcomes of previous rolls do not affect the outcomes of future rolls.

And there is one desired outcome and six possible outcomes.

So,

The probability of rolling a six on the fifth roll = 1/6 which is same as the probability of rolling a six on any given individual roll.

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The answer is -

The probability of rolling a 6 on the next toss = 1/6

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2 years ago

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3 years ago

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6 0

2 years ago

The heights of adult males in the United States are approximately normally distributed. The mean height is 70 inches (5 feet 10

steposvetlana [31]

Using the normal distribution, it is found that the probability is 0.16.

<h3>Normal Probability Distribution</h3>

In a normal distribution with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

It measures how many standard deviations the measure is from the mean.

After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.

In this problem, the mean and the standard deviation are given by, respectively, $\mu = 70, \sigma = 3$ .

The proportion of students between 45 and 67 inches is the p-value of Z when <u>X = 67 subtracted by the p-value of Z when X = 45</u>, hence:

X = 67:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{67 - 70}{3}$

Z = -1

Z = -1 has a p-value of 0.16.

X = 45:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{45 - 70}{3}$

Z = -8.3

Z = -8.3 has a p-value of 0.

0.16 - 0 = 0.16

The probability is 0.16.

More can be learned about the normal distribution at brainly.com/question/24663213

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2 years ago

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Answer:

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1 year ago