Answer:
a
Step-by-step explanation:
gajansvxhchcjwiqaau
Answer:
(x+4y)(x-4y)
Step-by-step explanation:
Since

we can see that

Since the second angle + first angle is 90 degrees, the third angle must be 90 degrees to complete the 180 degrees in a circle.
Hope this helps!
Answer:
Option b
Step-by-step explanation:
To solve this problem use the law of the sines.
We have 2 angles of the triangle and one of the sides.

The law of the sines is:

Then:

