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3 years ago

Can someone help?

Mathematics

1 answer:

nalin [4]3 years ago

7 0

No no no no no no no no no jk its c your welcome

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What is 3a ^2 + a ^2 added to a +6 ?

KonstantinChe [14]

Answer:

it is a polynomial

3a^2+a^2= 4a^2

4a^2+6

Step-by-step explanation:

3a^2 +a^2 = 4a^2+6

=4a^2+6

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2 years ago

Exmpales of monomails

Afina-wow [57]

5r+3
2x-6
X4+10
There u go hun.

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2 years ago

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The volume of a right circular cylinder is 1100 cm3 and the radius of its base is 5 cm. Calculate its curved surface area.

Scorpion4ik [409]

Answer:

Step-by-step explanation:

Volume:

V = πr²h

Given r = 5 cm and V = 110 cm³, find h:

1100 = π(5²)h
1100/25 = πh
44 = πh

Curved surface area:

S = 2πrh = 2*5*πh = 10*44 = 440 cm²

Correct choice is C

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2 years ago

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Evaluate 7^2 PLEASE HELP ME

miss Akunina [59]

Evaluate 7^2 = 49
7•7=49

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2 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

2 years ago