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steposvetlana [31]
2 years ago
9

What is the missing part of the solution?

Mathematics
2 answers:
hoa [83]2 years ago
4 0

9514 1404 393

Answer:

  6.64

Step-by-step explanation:

Perhaps you have ...

  3.4\times10^{-20}+5.4\times10^{-19}+9\times10^{-20}=\underline{\ \ \ \ }\times10^{-19}\\\\=(0.34+5.40+0.90)\times10^{-19}=\boxed{6.64}\times10^{-19}

_____

Here, it is convenient to factor out 10^-19. If you like, a calculator or spreadsheet can figure this for you.

dangina [55]2 years ago
3 0

Answer:

Answer:

6.64

Step-by-step explanation:

Perhaps you have ...

3.4 x 10 20 -19 +5.4 x 101 +9 x 101 -20 = x 1

= (0.34 +5.40 + 0.90) x 107 -19

6.64 x 10

Here, it is convenient to factor out 10^-19. If you like, a calculator or spreadsheet can figure this for you.

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1 year ago
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The doubling period of a bacterial population is 15 minutes. At time t= 80 minutes, the bacterial population was 90000​
Papessa [141]

Answer:

here i finished!

hope it helps yw!

Step-by-step explanation:

The doubling period of a bacterial population is 15 minutes.

At time t = 90 minutes, the bacterial population was 50000.

Round your answers to at least 1 decimal place.

:

We can use the formula:

A = Ao*2^(t/d); where:

A = amt after t time

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t = time period in question

d = doubling time of substance

In our problem

d = 15 min

t = 90 min

A = 50000

What was the initial population at time t = 0

Ao * 2^(90/15) = 50000

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We know 2^6 = 64

64(Ao) = 50000

Ao = 50000/64

Ao = 781.25 is the initial population

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Find the size of the bacterial population after 4 hours

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6 0
3 years ago
What is 4y when x -3
lord [1]

Answer:

4y-x-3  = 0

Step-by-step explanation:

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How to find the mean of percentages
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Which is the correct input-output table for the function g(x)=-1/2(4x+6)
Sonbull [250]

Answer: The third choice.

Step-by-step explanation: To find the first output, start with your first input. In this case, it's -2, so your equation would be g(-2)= -1/2(4(-2)+6). Start by solving inside the parenthesis. 4x-2=-8 and -8+6=-2. -1/2x-2= 1, so your first output should be 1. The only choice that has this is the third one, so that is your answer. Hope I could help :)

4 0
3 years ago
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