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3 years ago

How to expand and simplify -4x-10x

Mathematics

1 answer:

GenaCL600 [577]3 years ago

5 0

<span>-4x-10x = -14x ....

hope it helps</span>

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What are all natural numbers using the digits 7 , 0 ,6 without repeating the numbers

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Answer:

Step-by-step explanation:

The natural numbers can be :

076

067

706

760

607

and 670

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3 years ago

Can anyone help me with this

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4 years ago

Which of the following proportions is false?

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Answer:

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Step-by-step explanation:

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3 years ago

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The population of a community is known to increase at a rate proportional to the number of people present at time t. If the popu

Lady bird [3.3K]

Answer:

$P(t) = P(0)e^{0.0693t}$

Step-by-step explanation:

The population of a community is known to increase at a rate proportional to the number of people present at time t.

This means that the population growth is modeled by the following differential equation:

$\frac{dP(t)}{dt} = rP(t)$

Which has the following solution:

$P(t) = P(0)e^{rt}$

In which P(t) is the population after t years, P(0) is the initial population and r is the growth rate.

The population has doubled in 10 years

This means that $P(10) = 2P(0)$ . We use this to find r.

$P(t) = P(0)e^{rt}$

$2P(0) = P(0)e^{10r}$

$e^{10r} = 2$

$\ln{e^{10r}} = \ln{2}$

$10r = \ln{2}$

$r = \frac{\ln{2}}{10}$

$r = 0.0693$

So the equation that will estimate the population of the community in t years is:

$P(t) = P(0)e^{0.0693t}$

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3 years ago

Help me please if you can

jolli1 [7]

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3 years ago