I WILL ONLY GIVE BRAINLIEST IF YOU SHOW YOUR WORK

9514 1404 393

Answer:

  n(t) = 20,000/(1 +99e^(-0.7033t))

Step-by-step explanation:

One way to write the logistic function is ...

  n(t) = L/(1 +a·e^(-kt))

where L is the maximum value and parameters 'a' and k depend on boundary conditions.

Here, we have n(∞) = L = 20,000 and n(0) = L/(1+a) = 200. We also have n(1) = L/(1+a·e^-k) = 400.

Solving for 'a', we get ...

  n(0) = 20000/(1+a) = 200

  20000/200 -1 = a = 99

Solving for k, we get ...

  n(1) = 20000/(1 +99e^-k) = 400

  20000/400 -1 = 99e^-k = 49

  e^-k = 49/99

  k = -ln(49/99) ≈ 0.7033

So, the desired function is ...

  n(t) = 20000/(1 +99e^(-0.7033t))

Répondre:

r <27

Explication étape par étape:

Compte tenu de l'inégalité 5r + 9> 10r - 126

Nous devons trouver l'ensemble de solutions

5r + 9> 10r - 126

Ajouter 126 des deux côtés

5r + 9 + 126> 10r - 126 + 126

5r + 135> 10r

5r-10r> -135

-5r> -135

Divisez les deux côtés par -5 (notez que le signe changera)

-5r / -6 <-135 / -5

r <27

Par conséquent, les ensembles de solutions sont des valeurs inférieures à 27

Answer:

1/3

Step-by-step explanation:

Answer:

The dot is at positive 4.

Answer:

option a is correct

Step-by-step explanation:

I think

Answer:

D -  It has a single solution: x = -3, y = 26.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Traingle 72 LN

Answer:

c

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

mcfluffythebigrubberducky

Answer:

Step 3, because the values for x for which y^1 < y^2 also include values between 3 and 5.

Step-by-step explanation:

Just took the test.

Answer:

c

Step-by-step explanation:

it just is

Answer:

Step-by-step explanation:

lets replace x with 3

f(3)= -2(3)^3+3(3+2)=-2*27+15=-54+15=-39

Answer:

The price was reduced from $60 to $45 - So the price was reduced by $15. $15 is what percent of the original price of $60? Percentages can be expressed as fractions or decimals. For example, 30% is the same as 0.30 or 30/100.

Answer:

(5-2a+6b)/2

Step-by-step explanation:

According to PEMDAS, we would multiply 2 by (a+3b) first. This would equal 2a+6b. Since this is being subtracted from 5, the numerator would equal 5-2a+6b. This would bring the simplified answer to (5-2a+6b)/2

Answer:

830 miles

Step-by-step explanation:

By car, she travels 65 mph for 2 hours. 2 multiplied by 65 equals 130. She then travels 350 mph for 2 more hours by plane. 2 multiplied by 350 equals 700. Add the two distances together and you get 130 + 700 = 830

Answer:

I might be wrong but I think it is c

Step-by-step explanation:

Answer:

Step-by-step explanation:

P1 = (0,2)

M =8/2= 4

y-2=4(x-0)

y-2 = 4x

y= 4x +2

:)

Answer:  Choice B) [tex]\frac{5\sqrt{11}+5\sqrt{3}}{8}\\\\[/tex]

==========================================

Work Shown:

[tex]\frac{5}{\sqrt{11}-\sqrt{3}}\\\\\\\frac{5(\sqrt{11}+\sqrt{3})}{(\sqrt{11}-\sqrt{3})(\sqrt{11}+\sqrt{3})}\\\\\\\frac{5\sqrt{11}+5\sqrt{3}}{(\sqrt{11})^2-(\sqrt{3})^2}\\\\\\\frac{5\sqrt{11}+5\sqrt{3}}{11-3}\\\\\\\frac{5\sqrt{11}+5\sqrt{3}}{8}\\\\\\[/tex]

This shows why choice B is the answer.

---------------

Explanation:

So in general, if the denominator is [tex]\sqrt{a}-\sqrt{b}[/tex] and you want to rationalize the denominator, then you should multiply top and bottom by [tex]\sqrt{a}+\sqrt{b}[/tex]. The same applies in reverse as well.

This leads to the denominator becoming [tex](\sqrt{a}-\sqrt{b})(\sqrt{a}+\sqrt{b}) = (\sqrt{a})^2-(\sqrt{b})^2 = a-b[/tex]

Keep in mind that [tex]a \ge 0[/tex] and [tex]b \ge 0[/tex]

Answer:

3/2

Step-by-step explanation:

18 red buttons: 12 blue buttons

18/12

Divide the top and bottom by 6

18/6 = 3

12/6 = 2

3/2

Answer:

3/2

Step-by-step explanation:

18/12 can be broke down and easily simplified given the numbers are even.

18 divided by 2 = 9

12 divided by 2 = 6

9/6

18 divided by 3 = 6

12 divided by 3 = 4

6/4

Simplest form;

18 divided by 6 = 3

12 divided by 6 = 2

3/2

---------------------------------------

Hope this helps!

9514 1404 393

Answer:

  (x, y, z) = (-8 2/7, -10, -7 3/7)

Step-by-step explanation:

A graphing calculator or matrix solver can find the solution easily. It is ...

  (x, y, z) = (-8 2/7, -10, -7 3/7)

__

You can find y by subtracting the second equation from the third:

  (2x -y +z) -(2x -3y +z) = (-14) -(6)

  2y = -20

  y = -10

Putting this value into the first equation and either of the others gives ...

  x -3z = 14

  2x +z = -24

Subtracting twice the first of these from the second gives ...

  (2x +z) -2(x -3z) = (-24) -2(14)

  7z = -52

  z = -52/7 = -7 3/7

  x = 14 +3(-7 3/7) = -8 2/7

So, the solution is (x, y, z) = (-8 2/7, -10, -7 3/7).

Answer:

Step-by-step explanation:

No Solution!

Answer:

Yes, the triangles are similar because they have the same 2 angles congruent, and X=12.44

Step-by-step explanation:

Answer:

Step-by-step explanation:

2x2−3x−4=0

For this equation: a=2, b=-3, c=-4

2x2+−3x+−4=0

Step 1: Use quadratic formula with a=2, b=-3, c=-4.

x=

−b±√b2−4ac

2a

x=

−(−3)±√(−3)2−4(2)(−4)

2(2)

x=

3±√41

4

Answer:

16

Step-by-step explanation:

It shows the mulitplication bettween eachother.

Answer:

calculater or hackmath

Step-by-step explanation:

Answer:

The correct option is (c).

Step-by-step explanation:

The combined formula is given by :

[tex]h=\dfrac{V}{\pi r^2}[/tex] ...(1)

h is height

V is volume

r is radius

It is clear from formula (1) that h varies directly with V and inverse;y with the square of r.

Hence, the correct option is (c).

Answer:

h varies directly with V and inversely with the square of r.

Step-by-step explanation:

(Since pie is a constant, it's not said in the "sentence")

I also just got it right on the quiz.

Answer:

B

Step-by-step explanation:

Answer:

p=19

Step-by-step explanation:

Distribute:8=4p-68

76=4p

p=19

(can I get brainliest)

Answer:

Answer:

0; 2; 6; 0 or -1

Step-by-step explanation:

If the question says "f(a)=" they are asking for the y value with the given x such as the two first ones.

If it's "f(x)=a than x=" they are asking you what x is when the (bolded) x is a given value.

Answer:

17.606

Step-by-step explanation:

root of 310  = 17.606

Answer:

√30/10

Step-by-step explanation:

calculator

The perimeter of a rectangle is 40m and one side of it is 5m. What is the length of the other side using an equation?

Perimeter of the rectangle =2(l+ b)=40m

If one of its side b=5, then l = (40/2)-5

= 20–5

= 15 m Therefore

Length= 15 cm

Breadth =5 cm

Answer:

perimeter means the total distance of all sides of a shape. Rectangle has 2pairs of 2 sides with the same length. If one is 5 the other pair would be 5. So 40-5-5 would be the total of the second pair , 30. 30/2=15. So there's 2 sides with 5m each, and another 2 sides with 15m each

Answer:

6

Step-by-step explanation:

completing step 2 will land you at (8,0). you would just need to count up from there until you reach the line.