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iren [92.7K]
3 years ago
9

Lena took a nap . she fell asleep at 11:37a.m and she woke up at 1:24p.m. how long did she sleep?

Mathematics
1 answer:
zalisa [80]3 years ago
6 0
1 hour and 57 minutes
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Answer:

The sample is 250 first-year students of the Concordia University

Step-by-step explanation:

When you are making a research you have to take into account two elements: The population and the sample.

The population refers to ALL the individuals that have the characteristic you are investigating, in this case the population of the researcher is the first year students al Concordia University, because he want to estimate the textbook costs for this students because it is not taken into account in the college costs.

The problem is thar if there are a thousand students of first year or more it will be very difficult to make the study because you he will need more resources, more time, and he will have to analyze more information, that's why he takes a SAMPLE that represent the whole population that in this case correspond to 250 first-year students of the Concordia University, this students will represent the population and as a conclusion of his work, he must say that in the costs of college education it must be include other costs such as textbook cost, because in average they have a cost of $300 per semester that must be added to the tuition cost.

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Choose the correct solution and graph for the inequality <br><br> Z+9&lt;_ 6
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It would be the first option.

Step-by-step explanation:

minus 9 from both sides to get a -3

so z≤-3

A good trick I learned was which ever way the arrow is pointing (in this case left) is the way the line will go.

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$34,822.03

Step-by-step explanation:

Future value after 30 years (FV) = $200,000

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PV = \frac{FV}{(1+r)^n}

Applying the data provided:

PV = \frac{\$200,000}{(1+0.06)^{30}}\\PV=\$34,822.03

The present value of the lottery prize amount is $34,822.03.

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