The birth rate in a certain city is described by the following function . the city's death rate is given by . here, t is measured in years, and t = 0 corresponds to the start of the year 1990. the birth and death rates are measured in thousands of births or deaths per year. at the start of 1990, the population of the city is 450 thousand. enter all the following answers correct to two decimal places.

so what is the question

step-by-step explanation:

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)