Aculture started with 6,000 bacteria. after 4
hours, it grew to 7,800 bacteria. predict how
many bacteria will be present after 18 hours.
round your answer to the nearest whole
number.
p- aekt

19539 bacteria will be present after 18 hours

Solution:

Initial value of bacteria N = 6000

Value after 4 hours = 7800

The standard exponential equation is given as:

where

N is amount after time t

No is the initial amount

k is the constant rate of growth

t is time

Plugging in the values in formula we get,

Solving for "k" we get,

Taking "ln" on both sides, we get

On solving for ln, we get k = -0.0656

The equation becomes,

Now put "t" = 18,

Hence the bacteria present after 18 hours is 19539

answer is:

1.75 pounds

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer