Answer:0.44682639764
Step-by-step explanation:
Answer:
just look that up and walla insta answer
A! because they are opposite reciprocals and obviously create a 90 degree angle
7k/3 = 21
x 3 x3
7k = 63
/7 /7
k = 9
(7(9)/3 = 21 = 63/3 = 21 = 21 = 21)
The answer is A, due to that you multiply 12 times 6 and 12 times 2, which then you are adding and get the total answer.