There are 650 students in the graduation class at East Community College. Of these students, 48 percent plan to attend and 44 percent don’t plan to attend. The rest have not decided. How many students are not sure to attend?

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

is there more to this question?

11) obtuse

13)right

15) acute