Answer:
PLESS WRITE A CORRECT QUESTION THAS I CAN HELP YOU
For this case we have the following expression:

We take common factor
, for this we must take into account that:

So, factoring the expression we have:

ANswer:
The factored expression is:

Answer:
Applying the Pythagorean theorem, the diagonal is calculated by:
D = sqrt(40^2 + 9^2) = 41
Hope this helps!
:)
Answer:
pretty easy
u calculate using the law of....
then add and subtract in the way of ..
So: A + C = 180°
X + 20° + 110° = 180°
Then:
X = 50°