When copying segments and angles, which step is the same?

Mathematics

1 answer:

denis-greek [22]2 years ago

6 0

Answer:

Draw a ray with one endpoint.

Step-by-step explanation:

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In a survey of music preferences 81 out of 450 students said that they preferred country music what percent of the students pref

Kazeer [188]

To write 81/450 as a percent have to remember that 1 equal 100% and that what you need to do is just to multiply the number by 100 and add at the end symbol % .

81/450 * 100 = 0.18 * 100 = 18% 
81/450 as a percent equals 18%

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2 years ago

A survey of 1950 people found that 39% preferred chocolate ice cream to vanilla. About how many people preferred chocolate ice c

FrozenT [24]

N(U) = 1950
39% of them preferred chocolate ice-cream.
Then,
no. Of people who preferred chocolate ice-cream= 39% of 1950
=39/100 *1950
= 760.5

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3 years ago

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Find the perimeter and area of the figure with the given coordinates:

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Three potential employees took an aptitude test. Each person took a different version of the test. The scores are reported below

BARSIC [14]

Answer:

Due to the higher Z-score, Demetria should be offered the job.

Step-by-step explanation:

Z-score:

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

In this question:

Whichever applicant had grade with the highest z-score should be offered the job.

Demetria got a score of 85.1; this version has a mean of 61.1 and a standard deviation of 12.

For Demetria, we have $X = 85.1, \mu = 61.1, \sigma = 12$ . So