This equation does not have any solution since determinant <0
i.e.,D=b^2-4ac
=2^2-4×1×7
=4-28
=-24
i.e.,is less than 0
4•4=16
12•5=60. That’s the answer
The answer is (6, 2)
To find the pair use the number that’s below the point and to find y use the numbers that are to the left, or use this to help (x, y)
Answer:
true
Step-by-step explanation:
Answer:
Here is the complete question attached with.
The mean score would decrease more than the median score.
Step-by-step explanation:
The numbers for which we have to find the mean and median are:

Here the mean, 
Median,
as median is the middle term if the observations are arranged in ascending order.
Now as the question says that we have to add a zero to see its effect.
So adding a zero we have
Mean 
Median
,as number of observations is even terms so we will add two middle numbers and divide it with
.
So we can conclude that the mean is having more variation than the median.
Mean shows as variation of
where as Median shows a variation of
only.
So our final answer is option D that is "The mean score would decrease more than the median score."