Answer:
SinA = 40/50
Step-by-step explanation:
I think it's just asking if you understand the trig ratios. You aren't really solving for anything.
SinA is 40 over 50 because 40 is opposite of <A and 50 is the hypotenuse.
Then, use the trig ratios to figure out the other problems.
Answer:
x=7,-17/3
Step-by-step explanation:
4+1 = 5
5 is the answer but you could also just subtract it a normal way
Answer:
4.05
Step-by-step explanation:

multiply the following
add the sum (3.5+0.55)
you'll get 4.05