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OlgaM077 [116]
3 years ago
12

Question 22 i need help! please!

Mathematics
1 answer:
Deffense [45]3 years ago
6 0

Answer:

Step-by-step explanation:

a= 2

b= 20

c= 54

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The doubling period of a bacterial population is 15 minutes. At time t= 80 minutes, the bacterial population was 90000​
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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

Ao = initial amt (t=0)

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

Ao * 2^6 = 50000

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

Change 4 hr to 240 min

A = 781.25 * 2^(240/15

A = 781.25 * 2^16

A= 781.25 * 65536

A = 51,199,218.75 after 4 hrs

6 0
3 years ago
Scientists have increased their ability to make observations beyond their own senses through the invention of specialized equipm
just olya [345]

Answer:

D

Step-by-step explanation:

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B is never going to be true. We still have to test things out, even with the best tools that we have.

C: The exact opposite is true. Our knowledge of the universe has expanded beyond our belief with the better tools of technology that we have.

D: This is the opposite of C and is the answer.

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2 years ago
You and three friends own a paint shop. The shop's profit was $536 in the first month. You always divide the profits equally. In
d1i1m1o1n [39]
C. $360 $536+$360=$896 $896/4= $360
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3 years ago
Help pls I need help with this question anyone??
Neporo4naja [7]

Answer:

I think red

Step-by-step explanation:

SRY i I am wrong

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What is 9/4 divided by 3/8?
Contact [7]
The answer would be 6
7 0
3 years ago
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