Answer:
8.6
Step-by-step explanation:
a^2+b^2=c^2
7^2+5^2=c^2
49+25=c^2
74=c^2
8.6=c
sin a = 0.689
in the image
1/2 + 2/3 + 5/4 = 29/12 = 2 5/12 ≅ 2.4166667
Answer: 5>y
The very last is the right answer
