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topjm [15]
3 years ago
5

Which is equivalent to 256 3\4

Mathematics
1 answer:
Mademuasel [1]3 years ago
7 0

<em>Answer:</em>

<em>we have </em>

<em> 256^{\frac{3}{4}} </em>

<em> we know that </em>

<em> 256=2^{8} </em>

<em> substitute </em>

<em> 256^{\frac{3}{4}}=(2^{8})^{\frac{3}{4}}=2^{\frac{24}{4}}=2^{6}=64 </em>

<em> therefore </em>

<em> the answer is the option </em>

<em> 64</em>

<em>this is what i found </em>

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The area of a square is 49 cm^2. What is the perimeter, in cm, of the square?
rewona [7]

Answer:

P = 28 cm

Step-by-step explanation:

The area of a square is

A = s^2 where s is the side length

49 = s^2

Taking the square root of each side

sqrt(49) = sqrt(s^2)

7 =s

Now find the perimeter of the square

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3 years ago
Assume that the population of human body temperatures has a mean of 98.6 degrees F and a standard deviation of 0.62 degrees F. I
dimulka [17.4K]

Answer:

0% probability of getting a mean temperature of 98.2 degrees F or lower.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation \frac{\sigma}{\sqrt{n}}.

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

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

The Z-score 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. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

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Z = \frac{X - \mu}{s}

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Z = -6.67

Z = -6.67 has a pvalue of 0.

So there is a 0% probability of getting a mean temperature of 98.2 degrees F or lower.

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Answer:

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