Mathematics, 12.01.2021 17:00 kolbehoneyman
How much pure antifreeze must be added to 12L of a 40% solution of antifreeze to obtain a 60% solution?
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Mathematics, 21.06.2019 12:30
What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?
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Mathematics, 22.06.2019 00:30
An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.
Answers: 1
Mathematics, 22.06.2019 01:20
1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed
Answers: 2
How much pure antifreeze must be added to 12L of a 40% solution of antifreeze to obtain a 60%
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