I’m sorry I can’t see it well enough (my eyesight is bad)
Answer:
t° = 11° s°= 71°
Step-by-step explanation:
79° + t° =90° (Given)
t°= 90° - 79°
t°= 11°
s°+79°+11°+19° =180° (angles on an str line)
s° = 180° - 109°
s° = 71°
Answer:
A
Step-by-step explanation:

as 0≤θ≤90
so θ/2 is also in 0≤θ≤90
hence sin θ/2 and cos θ/2 are positive.
<em>Simplify brackets </em>
-5.12 + 4.7 + 7.021
<em>Simplify </em>
6.601
Answer: B 6.601