In the addition shown on the figure the digits of the numbers are replaced by symbols. Different symbols represent different digits, and equal symbols represent equal digits. Find the digit replaced by the square.


A) 9             B) 8                  C) 7              D) 6                      E) 5

Find the smallest value  \(A=\left(x+3y-5\right)^2-6xy+27\)

Answer:

Two segments AB and CD are symmetric to each other with respect to axis d .Given that AB = 3cm. Evaluate the length of segment CD.

Answer: CD = ... (cm)