Identify as a direct variation, inverse variation or neither. y = 6x
2 answers:
Answer:
y=6x is a direct variation.
Step-by-step explanation:
In direct variation the relation between two variable is direct. It means y varies directly as x.
Where, k is constant of proportionality.
In inverse variation the relation between two variable is inversely proportional. It means y varies inversely as x.
Where, k is constant of proportionality.
The given function is
It is direct variation because y varies directly as x and constant of proportionality is 6.
Therefore, y=6x is a direct variation.
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Answer:
Step-by-step explanation:
Z - score
In a set with mean and standard deviation
, the zscore of a measure X is given by:
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 pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:
Calculate the Z value for the next car that passes through the checkpoint will be traveling slower than 65 miles per hour.
This is Z when X = 65. So