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goldfiish [28.3K]
1 year ago
5

a culture of bacteria starts with 505050 bacteria and increases exponentially. the relationship between bbb, the number of bacte

ria in the culture, and ddd, the elapsed time, in days, is modeled by the following equation. b
Mathematics
1 answer:
lisabon 2012 [21]1 year ago
6 0

In 9 days, the number of bacteria in the culture will reach 800,000.

  • A process called exponential growth sees a rise in quantity over time. It happens when a quantity's instantaneous rate of change with respect to time is equal to the quantity itself.
  • B = 50[10^(d/2)]
  • Small, single-celled creatures called bacteria exist. Nearly all areas of the world are home to bacteria, which are essential to its ecosystems.
  • A microbiological culture, also known as a microbial culture, is a technique for growing microbial organisms in a controlled laboratory environment while allowing them to reproduce in a predefined culture medium. In molecular biology, microbial cultures are fundamental diagnostic techniques that are employed as research tools.
  • We want to find the number of days to reach 800,000 bacteria in the culture.
  • 800000 = 50[10^(d/2)]
  • 16000 = 10^(d/2)
  • d/2 = log_{10} 16000
  • d/2 = 4.204
  • d = 8.408
  • d = 9 days

To learn more about exponential growth, visit :

brainly.com/question/2193820

#SPJ4

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Convert x2 + y2 -4x = 0 to polar form.
Bingel [31]

Answer:

r(r-4\cos \theta)=0

Step-by-step explanation:

We are given the following equation:

x^2 + y^2 -4x = 0

We have to convert it into polar form.

We put

x = r \cos \theta\\y = r\sin \theta

Putting values, we get:

x^2 + y^2 -4x = 0\\(r\cos \theta)^2 + (r\sin \theta)^2 - 4(r\cos \theta) = 0\\r^2(\cos^2 \theta + \sin^2 \theta) - 4r\cos \theta = 0\\r^2 - 4r\cos \theta = 0\\r(r-4\cos \theta)=0

is the required polar form.

7 0
3 years ago
The length of a parallelogram exceeds its breadth by 30 cm. If the perimeter of the parallelogram is 2 m 60 cm, find the length
Nuetrik [128]

\huge\underline{\underline{\boxed{\mathbb {SOLUTION:}}}}

\longrightarrow \sf{2(1 + b) = 260}

\longrightarrow \sf{2(x+30+x) = 260}

\longrightarrow \sf{ 2x+30 = \dfrac{260}{20} }

\longrightarrow \sf{2x + 30 =130}

\longrightarrow \sf{2x = 130 - 30}

\longrightarrow \sf{2x = 100}

\longrightarrow \sf{x=  \dfrac{100}{2} }

• \longrightarrow \sf{b= \underline{50cm}}

\longrightarrow \sf{= x + 30}

\longrightarrow \sf{= 50 + 30}

• \longrightarrow \sf{ \underline{80cm}}

\huge\underline{\underline{\boxed{\mathbb {ANSWER:}}}}

\large\bm{Breadth= \: 50cm}

\large\bm{Length= \: 80cm}

3 0
2 years ago
Need help
Alika [10]

Answer:

16

Step-by-step explanation:

2*8= 16

4 0
3 years ago
Read 2 more answers
I have like 20 minutes please help<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D-7x%2B10%3D0" id="TexFormula1" title="x^{2}-7x+10
Mandarinka [93]

Answer: Hmm Ok i do this-

Step-by-step explanation:

Wait are we trying to find x?

Ok so for the first one x = 5 and for the second one x = 2

3 0
3 years ago
Each car on a train has 200 seats how many seats are on a train with 8 cars
Sati [7]
Well it would be 200 × 8 which would equal to 1600
8 0
3 years ago
Read 2 more answers
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