Answer:
Multi facets
Step-by-step explanation:
First company surveys best customers so they are highest spending
First company standard deviation is high @ $62 so their spends are $606 a year plus or minus $180 (rounded up)
Second company has a Random sample so includes all customers
Second company has larger number of responses
Second company has a range of plus or minus $40
4 because 2+2 equals 4 and 2 in each day
Answer: √113 or 10.63
Step-by-step explanation: the exact answer is √113, or 10.63 if you're looking for the decimal form
Answer:

Step-by-step explanation:
The general point on a unit circle is given by


where

is the terminal side of the angle in standard position.
Therefore


lies on this circle
This angle intersects the unit circle at

Hence we must have

