70 miles apart :)
hope I helped :) If you want work shown comment of this please :)
Answer:
The fraction 13/7 is a rational number. Both 13 and 7 are integers (whole numbers), so by definition, 13/7 is a rational number
is the expression that represents the perimeter of rectangle
<em><u>Solution:</u></em>
Let "x" represent the width of rectangle
Given that length of rectangle is 3 units shorter than one-third of the width x
length of rectangle = one-third of the width x - 3
<em><u>The perimeter of rectangle is given as:</u></em>
<h3>perimeter of rectangle = 2(length + width)</h3>
Substituting the known values we get,
Thus perimeter of rectangle is
Thus option 1 is correct
Answer: B. This student's test grade was 2.4 standard deviations above the mean test grade.
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Explanation:
The z score tells us how far away the raw score is from the mean. This distance is in terms of standard deviations.
- z = 1 means we're 1 standard deviation above the mean
- z = 2 means we're 2 standard deviations above the mean
and so on.
Negative z scores indicate the raw score is below the mean.
- z = -1 means we're 1 standard deviation below the mean
- z = -2 means we're 2 standard deviations below the mean
and so on. So that's why z = 2.4 indicates the students test grade was 2.4 standard deviations above the mean.
