Answer:
54
Step-by-step explanation:
Answer:
Lower limit = 1007.95 cm/s
Upper limit = 1142.05 cm/s
Step-by-step explanation:
We have to calculate a 95% CI with population's standard deviation known.
The sample is size n=60, with mean M=1075.
The confidence interval can be expressed as:

For a 95% CI, the value of z=1.96.

The last one is the correct answer!! nothing that is dilated can be congruent to another triangle.
The table isn’t shown so I cant tell