Answer:
D
Step-by-step explanation:
A is an arithmetic sequence in that is adds or subtracts the same amount.
B is also an arithmetic is that it takes the original 1000 and adds another 1000 for each year
C is a geometric sequence because it's losing 5× however many questions missed
D is the answer because it says it loses 10% every year, so it loses 10% of the previous year, not the beginning year.
Answer: 8.5, 4, 8, 4, 20.5
Explanation:
Mode : 4
Median : 8
Mean : (8.5 + 4 + 8 + 4 + 20.5)/5 = 45/5 = 9
Range : 20.5 - 8.5 = 12
8.3456
9.7103
10.4356
74.8021
430.967
Answer:
21.7%
Step-by-step explanation:
(25,550-19,990) / 25,550 = 5,560/25,550 = 0.217612524462 or 21.7% increase
