An alien creature lives forever. It is born as a youngling and after 1 month matures to an adult - from then on it produces two younglings every month. (In other words, an alien starts producing younglings every month starting two months after it was born). If there is initially just one alien and a n is the number of aliens after n months, what is lim an 1/an as n approach infinity?

what "following statement"?

step-by-step explanation:

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

b, i believe, but not sure.