Answer:
I think it's ABD and DBC!
Step-by-step explanation:
I looked up complementary angles and it said "Two angles are called complementary when their measures add to 90 degrees." and it looks like those 2 would be it!
16
Answer: 2x and y= 4+
x = 2 times 2 and so on....
y = 4 plus 4 plus 4 etc....
A and B
I hope this helps you
j+8k
first -2i+j+4k-3i-2j+7k+5i+2j-3k