Which of these random samples represents a representative sample of the number of students in a middle school who walk to school
1 answer:
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Answer:
Step-by-step explanation:
Given
--- scale factor
Required [missing from the question]:
The ratio of width of the model to the original
From the question, we understand that the scale factor is: 2 : 15
The ratio of the width of the model to the original equals the given scale factor i.e.
Answer:
p =
Step-by-step explanation:
To make a perfect square
add ( half the coefficient of the x- term )² to x² - x, that is
x² + 2(- )x +
with p =
, thus
x² - x = (x - )² +