Answer:
For example, 8f + 4g is one of the most used expression
Another example is 4 (2f + g), is correct too
The story problem of shawn's poster length and width is the correct one
It depends on your goals.
typically it's B but it could be D
Answer:
B. The width of the confidence interval would be smaller.
Step-by-step explanation:
By reducing the confidence level from 99% to 95%, the student assumes that there is more uncertainty about the new confidence interval than the previous one. That, being said, since the results aren't as certain, the confidence interval is widened towards a central average point because the new interval isn't as accurate.
Therefore, the answer is B. The width of the confidence interval would be smaller.
Answer:

Step-by-step explanation:
(5,9) and (2,3)
then by distance formula

d²=3²+6²
d²=9+36
d²=45
