Answer:
z=1.96
Step-by-step explanation:
Using normal distribution table or technology, 97.5% corresponds to z=1.959964, generally denoted z=1.96, or 1.96 standard deviations above the mean.
(above value obtained from R)
You would have two hundred and fifty seven figures.
Answer: 37
Explanation: Triangles's angles add up to 180. 180-45-98 is 37
The answer to "6k+2" if "k=1.3" is "9.8".