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Answer:
(2,-5) and (2,1).
Step-by-step explanation:
We need to find the find all the points having an x coordinate of 2 whose distance from the point (-2,-4) is 5.
A circle with center (-2,-4) and radius 5 represents all the points whose distance from the point (-2,-4) is 5.
Standard form of a circle is

where, (h,k) is center and r is the radius.


Now, put x=2.




Taking square root on both sides.




So, the y-coordinates of the points are -5 and 1.
Therefore, the required points are (2,-5) and (2,1).
Answer:
0.3
Step-by-step explanation:
Step-by-step explanation:
3 + 4 + 5 + 6 + 6 + 7 + 8 + 8 + 9 + 9 / total of numbers or 10 = 65 ÷ 10 = 6.5 This is the mean.
3 - 6.5 = 3.5
4 - 6.5 = 2.5
5 - 6.5 = 1.5
6 - 6.5 = 0.5
6 - 6.5 = 0.5
7 - 6.5 = 0.5
8 - 0.5 = 7.5
8 - 0.5 = 7.5
9 - 0.5 = 8.5
9 - 0.5 = 8.5
MAD = 1.7