Answer:
1.)280 2.)142.5 3.)30
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
The constant of variation is the slope
k = (y2-y1)/(x2-x1)
= (30-18)/(5-3)
=12/2
= 6
The z-score of a data is calculated through the equation,
z-score = (x - m)/d
where x is the given value, m is the mean, and d is the standard deviation. Substituting the known values,
z-score = (28,000 - 34000) / 4,000
z-score = -1.5
Thus, the z-score of the 28,000 is -1.5.
Answer:
A. Graph B
Step-by-step explanation:
The reasoning is because the 2 lines are parallel; therefore, it is impossible for them to overlap or intersect, which is the only way a solution can be found. Parallel lines can never have a solution. Hope this helped!