Question

12In an experiment, a petri dish with a colony of bacteria is exposed to cold temperatures and then warmed again.
Find a quadratic model for the data in the table. Type your answer below. Show your work.

Time (hours)
0
1
2
3
4
5
6
Population (1000s)
5.1
3.03
1.72
1.17
1.38
2.35
4.08

Answer 1

@amberxoxo

Answer 2

sh*t

Answer 3

ikr

Answer 4

whys everythig gotta be math

Answer 5

becuase im in alebre 2 right now lol

Answer 6

oh lol ok

Answer 7

i take one class at a time

Answer 8

lol. math is stupid

Answer 9

̿ ̿̿ ̿’̿’̵͇̿̿з=(◣_◢)=ε/̵͇̿̿/’̿’̿ ̿ ̿̿ ̿̿ kill issac newton and all those math people

Answer 10

yah ikr lol

Answer 11

@Lakeekee_ i have to show my work on dis doe

Answer 12

ight holup let mi work dis out

Answer 13

ok fam

Answer 14

http://staff.bbhcsd.org/bradacm/files/2013/10/Enriched-alg-2-trig-unit-2-test-review-key.pdf this link has the work and the problem and i think it will help

Answer 15

wich number is it

Answer 16

24

Answer 17

all this work lol thnx b

Answer 18

Let the equation be : at^2 + bt + c = P, where t = time (hrs), P = population (1000's).

When t = 1, P = 3.03.
When t = 2, P = 1.72.
When t = 3, P = 1.17.

Substitute these into the equation to obtain these 3 simultaneous equations :

a + b + c = 3.03
4a + 2b + c = 1.72
9a + 3b = c = 1.17

Solving gives : a = 0.38, b = -2.45, c = 5.1.

The equation is therefore, P = 0.38t^2 - 2.45t + 5.1

Testing with t = 0 to 6 gives the population values as provided,
so it seems to be a valid model.

At t = 9 hrs, P = 0.38*9^2 - 2.45*9 + 5.1 = 13.83.

Answer 19

Use the model from problem 12 to estimate the population of bacteria at 9 hours.
Type your answer below. Show your work.

Answer 20

wait what?

Answer 21

next qution for dis table lol

Answer 22

what question? on the link

Answer 23

opps nvr mind lol

Answer 24

yhu st8 lol anymo?

Answer 25

yes but give me a second to write down these mess of khouas of words that look like dis to me fsabgvrakvntkwvetivtrweitvniv3qginlwrev lol

Answer 26

ight and im so dead rn lol

Answer 27

lol

Answer 28

mane you takin 55years to write i done went to mars and back

Answer 29

Evaluate the expression for the given value of the variable(s). Show your work. 4(3h-6)/1+h;h=2

Answer 30

i might have fdged that up lol hold on

Answer 31

ok were good

Answer 32

ight hol up let me solve this one

Answer 33

ight fam

Answer 34

amber she is a miracle worker cuz if she didnt answer these i would have failed life lol

Answer 35

4 plus 6h
10plus 2 divide by this answer
go x=158 over 4-6 times 2
168times 1000 plus 4-9
total= 1038694x

Answer 36

dang that took forever

Answer 37

lolo ok i have five nire question you ready fam lol

Answer 38

Find a quadratic model for the set of values: (-2, -20), (0, -4), (4, -20). Show your work.

Answer 39

wrf is yhu takin a test boi??

Answer 40

naw its my question i ahve failed over all my first semsetr lol i only have 5 left

Answer 41

all ight what is dey

Answer 42

i have time for this question becuase i ahve to go to work soon lol will do the rest tomorrrow lol thnx doe

Answer 43

yw boo jus hit me up if ya need my help

Answer 44

ok can you do that last question in two minutes plz i would greatly aprreciate very much

Answer 45

Find a quadratic model for the set of values: (-2, -20), (0, -4), (4, -20). Show your work

Answer 46

ight holup