Answer:
sin b = 0.8
Step-by-step explanation:
Since a and b are complementary angles , then
sin b = cos a = 0.8
125
Sum of Exterior Angles must add to 360 so
145
m<4 and m<3 would equal 90 so subtract 55 from 90 and you get 35 for m<3 so you subtract 35 from 180 and you get 145
Option D. 2
1+2+(-5)+4
= 1+2-5+4
= 1+2+4-5
= 7-5
= 2
