Answer:
23
Step-by-step explanation:
Because 23•23=529 so the square root of 529 is 23.
If you download Photomath and scan your question it will give u the answer;)
The

row is filled by just plugging in the corresponding values of

and

into the ODE.
For example, when

and

, you have

and so on.
Answer:
D
Step-by-step explanation:
They didn't provide the number for one of the faces btw..
Answer:
angle A measure 50 defree and angle B measure 40 degrees