All categories

3 years ago

Find the value of the expression 2xy2 if x = 3 and y = -2

Mathematics

2 answers:

nataly862011 [7]3 years ago

4 0

Answer: -24

Step-by-step explanation:

skelet666 [1.2K]3 years ago

4 0

Rewritten: 2 x 3 x -2 x 2
All together that should equal -24
That’s all I’ve gotten from a simple calculator.

You might be interested in

Find the value of f(-1) for the function below

mrs_skeptik [129]

Put the value of x = -1 to the equation of a function f(x):

$f(x)=\dfrac{2}{3}\times3^{3x+12}\\\\f(-1)=\dfrac{2}{3}\times3^{3(-1)+12}=\dfrac{2}{3}\times3^{-3+12}=\dfrac{2}{3}\times3^9=\dfrac{2}{1}\times3^8=13,122\to\boxed{B.}$

8 0

4 years ago

If a polynomial cannot be written as the product of two other polynomials (excluding 1 and minus−1), then the polynomial is sa

Anni [7]

In mathematics, a polynomial is an algebraic expression containing more than two terms. When the polynomial could not be reduced to a lower degree, it is classified as a prime polynomial. Just like whole numbers, a prime polynomial cannot be broken down into factors except 1 and by the number itself. Take for example, the polynomial x² + 5x + 6. It can be reduces to its factors x=-2 and -3. That would be expressed to x² + 5x + 6 = (x+2)(x+3). But if the polynomial is, say, x² + 5x + 7, there is no roots that are whole numbers. Therefore, it can't be reduced into factored groups because it is a prime polynomial.

5 0

3 years ago

At an animal shelter, the ratio of cats to dogs is 5:6. If there are 54 cats, how many dogs are there at the shelter?

Neko [114]

There would be 45 dogs!

8 0

3 years ago

En un pueblo hay tres iglesias cuyas campanas tocan cada 15 minutos, cada 20 minutos y cada 35 minutos. Suponiendo que en este i

34kurt

Answer:

420 minutos

Step-by-step explanation:

Resolvemos esta pregunta utilizando el método mínimo común múltiple

Encontramos los múltiplos de 15, 20 y 35

Múltiplos de 15:

15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375, 390, 405, 420, 435, 450

Múltiplos de 20:

20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300, 320, 340, 360, 380, 400, 420, 440, 460

Múltiplos de 35:

35, 70, 105, 140, 175, 210, 245, 280, 315, 350, 385, 420, 455, 490

Por lo tanto,

MCM (15, 20, 35) = 420

El primer múltiplo común es el mínimo común múltiplo.

Por tanto, el tiempo en el que las 3 campanas de la iglesia volverán a coincidir = 420 minutos

7 0

3 years ago

!!ONLY TWO QUESTIONS!!

Romashka-Z-Leto [24]

Answer:

A differnece between the plants is that the vascular plant has vascular vessels to carry water and food to all the different parts of the plant

Step-by-step explanation:

one of my teachers told me this.

3 0

3 years ago

Find the value of the expression 2xy2 if x = 3 and y = -2​

Find the value of the expression 2xy2 if x = 3 and y = -2