Answer:
Use a calculator for this like desmos graphing
Step-by-step explanation:
Answer:
The answer would be: We are 95% confident that the interval from 55.4 seconds to 61.2 seconds actually does contain the true value of μ.
Answer:
Standard form: 
Leading coefficient: 1
Step-by-step explanation:

The leading coefficient is 1 because the leading term is
.
The cube root of 81 is 4.32674871092
Answer:
79/96
Step-by-step explanation: