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svetlana [45]
3 years ago
14

. Simplify: 2(n + 5).

Mathematics
2 answers:
nordsb [41]3 years ago
8 0

Answer:2n +10

Step-by-step explanation:

2*n= 2n

2*5= 10

Colt1911 [192]3 years ago
4 0

Answer:

2n+10

Step-by-step explanation:

2(n + 5)

Multiply by 2

2(n)+2(5)

Open the bracket

2Xn + 2X5

2n+10

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Step-by-step explanation:

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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.

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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

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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
Describe how to evaluate and then evaluate<br>the following power: 81 3/2​
Lapatulllka [165]

Answer:729

Step-by-step explanation:

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

It wo be B= -8

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2 years ago
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