URGENT PLEASE ANSWER ALL THE i During the first stages of an epidemic, the number of sick people increases exponentially with time. Suppose that at time t = 0 days there are 16 people sick. By the time t = 3, 686 people are sick.

i) Write a particular equation for this situation.
ii) How many sick people on day 7?
iii) On what day will there be 5000 sick people?

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)