Answer:
324?
Step-by-step explanation:
It tells you the answer in the question?
the first one
it isn't the first 2 options
I'd say it's y=1/2x - 2
Answer: Where are the lines?
8/13 = 0.6153
y = cos-1(0.6153)
y = 52.0
I'm not totally sure if this is what you mean or if this is.
y = cos(8/13) = 0.9999 which to the nearest tenth is 1.0
Answer: on khan academy answer: 221
