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3 years ago

Factor completely x3 - y3

Mathematics

1 answer:

stealth61 [152]3 years ago

8 0

Answer:

$(x-y)(x^2+xy+y^2)$

Step-by-step explanation:

$x^3 - y^3=(x-y)(x^2+xy+y^2)$

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If a = -3, find the value of 3a²<br><br>

guajiro [1.7K]

Step-by-step explanation:

given

a = - 3

3a² = 3 * ( -3) ²

= 3 * 9

= 27

The value of 3a² is 27.

8 0

3 years ago

I have finished the table but stuck in the question after...

lisov135 [29]

Answer:

7/48

Step-by-step explanation:

there are 48 in total

there are 7 white females

7/48

4 0

3 years ago

En un pozo petrolìfero produce cada dia 2680 barriles de petroleo. Si cada barril contiene 159 litros de petroleo, cuantos litro

Aliun [14]

Answer:

426,120 litros se producen en un día Se producen

12,783,600 litros por mes (para un cálculo de 30 días en un mes)

Step-by-step explanation:

Aquí, debemos calcular la cantidad en litros de petróleo producido en un pozo petrolero.

Se nos dice que se producen 2.680 barriles por día y cada barril contiene 159 litros de petróleo.

La producción diaria en litros es, por lo tanto, de 159 * 2680 = 426,120 litros.

Ahora, para la producción mensual, supongamos que hay 30 días en un mes, la cantidad en litros producidos por mes sería la cantidad diaria multiplicada por la cantidad de días en un mes.

Matemáticamente, eso sería 30 * 426,120 = 12,783,600 litros

4 0

3 years ago

Solve the system with elimination. {2x-y=2, -5x+4y=-2

DaniilM [7]

Answer:

{x=2,y=2

Step-by-step explanation:

Equation 1:

Multiply both sides of the equation by a coefficient

{ 4(2x-y)=2*4

-5x+4y=-2

Apply Multiplicative Distribution Law

{8x-4y=2*4,-5x+4y=-2

8x-4y+(-5x+4y)=8+(-2)

Remove parentheses

8x-4y-5x+4y=8-2

Cancel one variable

8x-5x=8-2

Combine like terms

3x=8-2

Calculate the sum or difference

3x=6

Divide both sides of the equation by the coefficient of the variable

x=6/3

Calculate the product or quotient

x=2

Equation two:

{-5+4y=-2, x=2

-5*2+4y=-2

Calculate the product or quotient

-10+4y =-2

Reduce the greatest common factor (GCF) on both sides of the equation

-5+2y=-1

Rearrange unknown terms to the left side of the equation

2y=-1+5

Calculate the sum or difference

2y=4

Divide both sides of the equation by the coefficient of the variable

y=4/2

y=2

Hope this helps!!

6 0

2 years ago

.Given: F(x) = 3x2+ 1, G(x) = 2x - 3, H(x) = x

inna [77]

For this case we have the following functions:

$F (x) = 3x ^ 2 +1\\G (x) = 2x-3\\H (x) = x$

We have to:

$G (x) * - 1$ is given by:

$(2x-3) * - 1 = -2x +3$

Thus, the correct option is the option is A.

On the other hand,

$F (x) +G (x) = 3x ^ 2 +1 +(2x - 3) = 3x ^ 2+ 1+ 2x-3 = 3x ^ 2 +2x-2$

Thus, the correct option is the option is A.

We also have:

$F (-2) = 3 (-2) ^ 2+ 1 = 3 (4)+ 1 = 12+ 1 = 13$

Thus, the correct option is the option is B.

Last we have:

$F (3)+G (4) -2H (5) = (3 (3) ^ 2+ 1)+ (2 (4) -3) -2 (5) = (3 (9)+ 1) - (8-3) 10 = 28+ 5-10 = 33$

Thus, the correct option is the option is C.

ANswer:

Option A, A, B, C

8 0

3 years ago