-9 8/9 pretty sure hope this helps
Answer:
C, 40 degrees
Step-by-step explanation:
All the angles of a triangle add to 180 degrees according to the Triangle Sum Theorem.
Since all angles sum to 180, we can set all the values to add to 180.
We have:
Combining like terms, we have:
Subtracting 60 from both sides gets us
Dividing by 3 from both sides equals
100 * ( 12 - 0.02) ^10 =
= 100 * 0.98^10 =
= 100 * 0.8170728 =
= 81.70728 ≈ 81.7 ( to the nearest tenth )
Answer: 81.7