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blagie [28]
2 years ago
14

Which expression is equivalent to -3(2m-1) -n? 6m-n-3 6m-n+3 -6m-n-3 -6m-n+3

Mathematics
2 answers:
Yanka [14]2 years ago
3 0

Answer:

-6m-n+3

Step-by-step explanation:

photoshop1234 [79]2 years ago
3 0

Answer:

I think I got it but dont think it's right but -6m-n+3

Step-by-step explanation:

So -3(2m-1) if you multiply-3 by 1 it will equal -3 so if you multiply it by 2 that equals -6 so then you have -6m-n-3 but If you dont thinks it's right dont awnser with my awnser

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Suppose a population is growing by 8% each year. How many years will it take the population to double?
Doss [256]

ANSWER

\text{9 years}

EXPLANATION

We want to find the number of years that it will take the population to double.

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y=a(1+r)^t

where y = final value

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r = rate of growth

t = time (in years)

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Substitute the given values into the function above:

\begin{gathered} 2a=a(1+\frac{8}{100})^t \\ \frac{2a}{a}=(1+0.08)^t=1.08^t \\ 2=1.08^t \end{gathered}

To solve further, convert the function from an exponential function to a logarithmic function as follows:

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