Answer:
21π m, or ≈ 65.94 m
Step-by-step explanation:
Remember that π is the ratio between a circle's circumference and its diameter, or, in equation form:
where c is the circumference and d is the diameter. If we want to find the <em>circumference</em>, we can just multiply that equation by d on both sides to get
Here, our d = 21 m, so our circumference would be
m, or approximately 21(3.14) = 65.94 m
Using sampling concepts, it is found that the method that would result in a random sample is given by:
Pick 150 students' names from a jar that has the names of all the students in the school.
<h3>How are samples classified?</h3>
Samples may be classified as:
- Convenient: Drawn from a conveniently available pool.
- Random: All the options into a hat and drawn some of them.
- Systematic: Every kth element is taken.
- Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
- Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.
Researching the problem on the internet, the representative(all possible students can possibly be sampled) and random sample is given by the following option:
Pick 150 students' names from a jar that has the names of all the students in the school.
More can be learned about sampling concepts at brainly.com/question/25122507
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You can put the dollars on the y axis and the hours on the x axis. Whenever the hours increase by 1, move over 1 on the x axis and 7.50 up on the y axis.
The first point should be (1, $7.50).
↑ <span>↑
hours, money earned
The second point then will be (2, $15.00), the third will be (3, $22.50), and so on.
</span>
Answer:
1. (-3) and (-4)
2. (-5) and 6; vise versa
Answer:
2. 10 and 100
Step-by-step explanation:
5890/65= 90.6