A bacteria culture starts with 540 bacteria and grows at a rate proportional to its size. After 2 hours there will be 1080 bacteria.
(a) Express the population P after t hours as a function of t.
P(t)=
5
(b) What will be the population after 8 hours?
bacteria
r
(c) How long will it take for the population to reach 1970? Give your answer accurate to at least 2 decimal
places.
hours
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ram

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation:

the answer would be a 24

step-by-step explanation:

c=2πr=2·π·3=24

perimeter = 10 +  √10  units

explanation:

first, we will need to get the length of each line using the distance formula which is as follows:

distance = 

1- length of ab:

ab =   = 5 units

2- length of ac

length of ac is the same as ab = 5 units

3- length of bc:

bc =   =  √10  units

now, we can get the perimeter by adding the side lengths as follows:

perimeter = 5 + 5 +  √10

perimeter = 10 +  √10  units

hope this : )

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