Answer:
Step-by-step explanation:
The tangent is perpendicular to the radius. The given triangle is right if AB is tangent.
Use Pythagorean to verify
- 20² = 16² + 12²
- 400 = 256 + 144
- 400 = 400
Confirmed
I think it’s 700, but I’m not positive
Step-by-step explanation:
Pretty sure it's A. It should be the answer
Answer:incomplete
Step-by-step explanation:
The critical values for a 90% confidence interval are approximately

, so the confidence interval in this case is roughly