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3 years ago

GIVING 30 POINTS AND BRAINLIEST NEED HELP QUICK

Mathematics

1 answer:

77julia77 [94]3 years ago

4 0

Answer:

D) aas

look i wanted to tell whoever is reporting peoples answers for no reason plz STOP. It's really annoying cause if you keep doing that people will get banned for no reason. So like i said plz stop reporting for no reason

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The population of fish in a certain lake follows the logistic growth function , where t is the time in years.

Murrr4er [49]

Answer:

46 years

Step-by-step explanation:

We have the logistic growth function $f(t)=\frac{25,000}{1+8.25e^{-0.076t}}$ and we want to find the time when the population will reach 20,000, to do it we just need to replace $f(x)$ with 20,000 and solve for $t$ :

$f(t)=\frac{25,000}{1+8.25e^{-0.076t}}$

$20,000=\frac{25,000}{1+8.25e^{-0.076t}}$

Divide both sides by 25,000

$\frac{20,000}{25,000} =\frac{1}{1+8.25e^{-0.076t}}$

$0.8=\frac{1}{1+8.25e^{-0.076t}}$

Multiply both sides by $1+8.25e^{-0.076t}$ and divide them by 0.8

$1+8.25e^{-0.076t}=1.25$

Subtract 1 from both sides

$8.25e^{-0.076t}=0.25$

Divide both sides by 8.25

$e^{-0.076t}=\frac{0.25}{8.25}$

$e^{-0.076t}=\frac{1}{33}$

Take natural logarithm to both sides

$ln(e^{-0.076t})=ln(\frac{1}{33} )$

$-0.076t=ln(\frac{1}{33} )$

Divide both sides by -0.076

$t=\frac{ln(\frac{1}{33} )}{-0.076}$

$t$ ≈ 46

We can conclude that the population will reach 20,000 after 46 years.

5 0

3 years ago

Please help ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing.

fiasKO [112]

Answer:

B. x + 6

C. 4x - 1

Step-by-step explanation:

To get the two binomials of the trinomial, you split the middle term, like so:

$4x^2 - x + 24x - 6\\$

Group:

$(4x^2 - x) (24x - 6)$

Take out the GCF (Greatest Common Factor):

x(4x - 1) 6(4x - 1)

(x + 6) (4x - 1)

4 0

3 years ago

Need Help please answer

djverab [1.8K]

For the 2nd part of 2. just plug in what you have for G in your previous graph into the equation. This will give you H for all 5 columns . Like 3×8(-1+5)= h = 3× 32= 96 so H should equal 96 and so on as far as this function.

For number 3. The equation is given so just plug in your T for time which is 3 seconds, so...-16(3)^2+90(3) = H the height at 3 seconds. I'm doing it in my head but should be the height is 414. You should also say whether it's ft or inches etc because the teacher or yourself left that out of the equation which is also vital lol.

6 0

3 years ago

4(x-3)-(2x+5)=-3x-27

Georgia [21]

4(x-3)-(2x+5)=-3x-27
4*x - 4*3 - 2x - 5 = -3x - 27
4x - 12 - 2x - 5 = -3x - 27
2x - 17 = -3x - 27
2x + 3x = -27 + 17
5x = -10 / : 5
x = -2

7 0

3 years ago

Read 2 more answers

Solve 0.09 divided by 0.3

Cloud [144]

Answer:

0.3.

Step-by-step explanation:

0.3|0.09

move the decimal over once on both sides.

03|.9

03.|.9

- 9

_______

4 0

3 years ago