Answer:
the set of elements that are common to each of the given sets
Step-by-step explanation:
B=30. all you have to do is minus 9 from both sides then multiply 6 to each side so all thats left is the variable
Answer:
sin b = 0.8
Step-by-step explanation:
Since a and b are complementary angles , then
sin b = cos a = 0.8
