Answer:
Step-by-step explanation:
A subway train makes six stops of equal length during its 21 km run. The train is actually moving for 20 minutes of the trip. At
most how long can the train remain at each station if the average speed for the trip, including stops, is to be at least 36 km/hr?
1 answer:
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The first answer is 0.38(x^2)-2.45x+5.1. first, on a graphing calculator, you enter the data in the chart into stat edit. then you turn on stat plot 1 and press graph. press stat calc quadreg to find the equation. then, substitute 9 in for x to find that there will be 13.83 thousand bacteria after 9 hours
Answer:
Step-by-step explanation:
- <em>Take into account that a population data set contains all members of the group and a sample data set contains only a subpart of the group.</em>
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- <em>In this case, Ms. Smith can take the scores of all students of the math class, due to this group is not enough big to consider to take a subpart.</em>
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<u><em>Hence, Ms. Smith should consider her data as a population data set.</em></u>