Answer:
The correct option is A.
Step-by-step explanation:
The difference between actual value and predicted value is called residual.
Formula of residual is

Where, y is observed value or actual value and
is predicted value.


The value of residual is 1.4 and option A is correct.
Answer:
63*42=2646
22*22=484
Area of Shaded Gray portion=2646-484=2162
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Answer:
C
Step-by-step explanation:
Ax+by= C
Ax -Ax +By = C -Ax
By = C-Ax
By/B = C-Ax/B
y= C-Ax/B
Answer:
The values of a and b are {12,13}
Step-by-step explanation:
As,

We convert the division into a multiplication by inverting the denominator

Therefore, the smallest possible non-negative whole numbers for a and b could be are 12 and 13, respectively.