Answer:
C
Step-by-step explanation:
you are adding
Answer:
Step-by-step explanation:
use m a t h w a y
Answer: 
Step-by-step explanation:
Since, in the triangle abc,
ab = 10√91 unit, bc = 30 unit, ca = 100 unit and m∠b = 90°
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
Which is the required value of tan(∠a).
69.9 is exactly 3 standard deviations away, which means that 78.9 is +3 (more than 3) standard deviations
So the answer is 78.9