Question

http://prntscr.com/izyc5b

Answer 1

@Tranquility

Answer 2

to start, try writing the expression for cos(45) = adjacent/hypotenuse and solve for c

Answer 3

I'm back lol

Answer 4

ok ill try

Answer 5

cos45 i got 0.70710678118655

Answer 6

b

Answer 7

since the answers are in terms of cos(45) we don't need to convert this to a decimal

try to identify what the adjacent and hypotenuse sides are, based on the angle 45

Answer 8

b/cos(45) is correct

Answer 9

yeah, thanks for your help. B is aj and C is the hyp