A population of bacteria is growing according to the exponential model P = Ce^kt, where P is the number of colonies and t is measured in hours. If there were 120 colonies present initially, and there are 550 colonies present after 4 hours, what is k, the population's growth rate?

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies

1

x = 1

step-by-step explanation:

0 ÷ x = 0

0 ÷ 1 = 0