Answer:
b ≈ 48.6°
Step-by-step explanation:
Using the sine ratio in the right triangle
sin b =
=
, then
b =
(
) ≈ 48.6° ( to 1 dec. place )
20 x .80 = 16
So the answer would be 16.
I hope this helps :)
Answer: (1, -4)
Step-by-step explanation: just, go across to the other axis.