Kyra observed that 85% of the students at a library liked reading mystery stories. If 30 students at the library did not like re
1 answer:
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Answer:
The area of the square is 25.
Step-by-step explanation:
In the given square, the length of the side = 5d.
Area of a square = side × side
Given: Side = 5d
Now plug in side 5d in the above area formula, we get
Area of the square = 5d × 5d
= 25
Therefore, the answer is 25.
It is related to econometrics, however using simple algebraic logic we can solve this problem. General formula with residual is 
, where r is a residual. Plugging the pair into the formula, we obtain that 
and r=0.5