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Tanzania [10]
3 years ago
10

The number pi goes on forever with no repeating pattern; therefore, it is rationa

Mathematics
1 answer:
cricket20 [7]3 years ago
3 0
No 
it is irrational for that reason - it goes on without bound
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An aptitude test has a mean score of 80 and a standard deviation of 5. The population of scores is normally distributed. What ra
sdas [7]

Answer:

82.62

Step-by-step explanation:

Mean score (μ) = 80

Standard deviation (σ) = 5

The 70th percentile of a normal distribution has an equivalent z-score of roughly 0.525.

For any given score, X, the z-score can be determined by:

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

For z = 0.525:

0.525=\frac{X-80}{5}\\ X=82.62

A raw score of approximately 82.62 corresponds to the 70th percentile.

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4 years ago
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Which is the graph of f(x) = log3^x
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Answer: The graph has the answer

5 0
4 years ago
7 + 14 greatest common factor
boyakko [2]

Answer:

The greatest common factor is 21,

Step-by-step explanation:

Find the prime factors of each term in order to find the greatest common factor (GCF).

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3 years ago
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The Arc Electronic Company had an income of 7676 million dollars last year. Suppose the mean income of firms in the same industr
garri49 [273]

Answer:

0.9772 = 97.72% probability that a randomly selected firm will earn more than Arc did last year

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions 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.

Suppose the mean income of firms in the same industry as Arc for a year is 90 million dollars with a standard deviation of 7 million dollars.

This means that \mu = 90, \sigma = 7

What is the probability that a randomly selected firm will earn more than Arc did last year?

Arc earned 76 million, so this is 1 subtracted by the pvalue of Z when X = 76.

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

Z = \frac{76 - 90}{7}

Z = -2

Z = -2 has a pvalue of 0.0228

1 - 0.0228 = 0.9772

0.9772 = 97.72% probability that a randomly selected firm will earn more than Arc did last year

3 0
3 years ago
1
nikklg [1K]

Answer: A

Step-by-step explanation:

Since the triangles are congruent by HL, we know that there is a sequence of rigid motions.

By inspection, we know this sequence involves rotating triangle A 90 degrees clockwise and then translating it right.

8 0
3 years ago
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