1 year ago

The set of negative numbers are closed under division true or false if false explain

Mathematics

1 answer:

Delvig [45]1 year ago

8 0

Answer:

false

Step-by-step explanation:

A negative number divided by a negative number results in a positive number.

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The differential equation in Example 3 of Section 2.1 is a well-known population model. Suppose the DE is changed to dP dt = P(a

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Answer:

Decreases

Step-by-step explanation:

We need to determine the integral of the DE;

$dP/dt=P(aP-b)$

$dP=P(aP-b)dt$

$1/(dP^2-bP)dP=dt$

We can solve this by integration by parts on the left side. We expand the fraction 1/P²:

$1/(d-b/P)\cdot{P^2} dP$

let

$u=d-b/P$

$du/dP=b/P^2$

$dP=$ $\int\limits {P^2/b} \, du$

$P=lnu/b$

Substitute u in:

$P=ln(d-b/P)/b$

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We simplify:

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As t increases to infinity P will decrease

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2 years ago

A polyhedron has 6 faces and 7 vertices, how many edges does it have

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Answer:its gucci baby

Step-by-step explanation:

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3 years ago

What is the median for the data set?

GarryVolchara [31]

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Economists predict that Americans will spend $1,180 on Summer Vacation in 2015, this is up 4.8% from 2014. What did Americans sp

natta225 [31]

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Step-by-step explanation:

let americans spend $a in 2014

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