A) 9,072
B) 90,720
C) 907,200
D) 9,072,000
20 .If the third degree polynomial x^3 – 10x^2 + 12x + 72 can be factored to (x + 2) · y^2 , what is
y in terms of x ?
A) x − 6
B) x − 3
C) x − 1
D) x + 1
21.
To better measure the effects of increases in poaching, the nation of Wakanda began a
study in 2000 to track the number of elephants in each of the country’s three administrative
districts. Every two years, researchers performed a count of the number of elephants in
each region; these counts were performed in January. The table above shows the results of
the study.Researchers determine that at a 95% confidence level, their margin of error for the
population of elephants in 2010 was 17.4. If the actual population in 2010 is within the
confidence interval, what is the lowest possible population of elephants in Wakanda in
2010 ?
A) 1,317
B) 1,318
C) 1,319
D) 1,320