For khan academy . Need answer immediately

Mathematics

1 answer:

Alex73 [517]3 years ago

7 0

Answer:

I’m pretty sure it is y=2x+2

Step-by-step explanation:

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Bad quality but please help me

scoundrel [369]

-11/2 or -5.5
-4
0
4/5 or 0.8
1.5
3

4 0

3 years ago

For the system below identify the parameters as growth rates, carrying capacities, and measure of interactions between species.

babunello [35]

Answer:

2 and 3 are the the growth rates parameter for x and y respectively
16 and 20 are the carrying capacities for x and y respectively
2 and 7 measures the benefit to x and y of the interaction of the two species.

The species compete each other.

Step-by-step explanation:

When we have a population model for two species as we have here, the differential equations looks like this:

$\frac{dx}{dt}=a*x+b\frac{x^{2}}{N}+c*xy$

$\frac{dy}{dt}=d*x+e\frac{y^{2}}{M}+f*xy)$

Here:

a and d are the the growth rates parameter for x and y respectively

N and M are the carrying capacities for x and y respectively

c and f measures the benefit to x and y of the interaction of the two species.

So in our case we have:

$\frac{dx}{dt}=2*x+\frac{x^{2}}{16}+2*xy$

$\frac{dy}{dt}=3*x-\frac{x^{2}}{20}-7*xy$

Therefore:

2 and 3 are the the growth rates parameter for x and y respectively
16 and 20 are the carrying capacities for x and y respectively
2 and 7 measures the benefit to x and y of the interaction of the two species.

The term xy determine the if the species are cooperating of competing, so in this case have negative xy term in the second equation, it means the presence of either species decreases the rate of change of the other, so the species compete each other.

I hope it helps you!

3 0

3 years ago

3. Max packs cereal boxes into a larger box. The volume of each cereal box is 175 cubic inches. Which is the best estimate for t

solong [7]

C.
because 24 × 175 = 4,200

5 0

3 years ago

Which equation is a linear function?<br> y= 22 +7<br> y = 22 - 1<br> y= Ź - 5<br> y= 1 +

Mice21 [21]

Answer:

y=22-1