D is the correct answer I think.
Answer:
9
Step-by-step explanation:
12-5=7 so...
2+7 = 9
y = 9
Find the slope of the line connecting (1990,435000) and (2005,482300):
482300-435000 47300
m = ----------------------- = ---------------- = 3153/yr (approx)
2005 - 1990 15 yr
Use the point-slope formula to find the equation of this str. line:
y-435000 = (3153/yr)(x-1990)
The year 2020 is 30 years after 1990. Thus, the expected pop in 2020 is
given by y-435000 = 3153(30) = 94590, so that y = 529590.
90-n=3n hope this helps you
28
The outlier would be 28 because it is much lower than the rest of the numbers in the group and removing it would make the mean increase.
