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Pavlova-9 [17]
4 years ago
9

Which expression is equivalent to 7a^3(6a^2+a^2)-4a^6?

Mathematics
1 answer:
Thepotemich [5.8K]4 years ago
3 0
Simply simplify:

7a³(7a²)-4a^6 ⇒ 49a^6 - 4a^6 ⇒ 45a^6

Hope that helps!
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Please help :(
faltersainse [42]
I think the answer is c
7 0
3 years ago
Which of the following, is a factor of 3x^3-9x^2+3x?
iVinArrow [24]

Answer:

A factor of 3x^3-9x^2+3x is 1

Step-by-step explanation:

The factor of 3 are:

1,3

The factor of 9 are:

1,9,3

The factor of 2 are:

1,2

Hope this help and have a great day

3 0
4 years ago
4. Elena va a una fiesta pero no sabe que ponerse, así que lanza un moneda y un dado al
taurus [48]

Answer:

  • <u>1/4</u>

Explanation:

Hola. Puesto que tu pregunta está en español, te responderé en el mismo lenguage.

Estas son las posibilidades dadas por la combinación moneda/dado

                                      Número de combinaciones

Moneda: prenda

    Cara: vestido                 1 de 2:          1/2

     Sello: falda                    1 de 2:          1/2

Dado: color

    Par: negro                      3 de 6:          3/6

    Impar: café                     3 de 6:         3/6

En total son 2 × 6 resultados: 12 (incluye resultados repetidos, no son todos diferentes entre sí)

¿Cuántas combinaciones tienen vestido y color negro?

  • P(Vestido∩negro) = ?

Es decir: moneda = cara y dado = par

  • Son 1 × 3 = 3.

Por tanto, la probabilidad de vestido negro es:

  • 3 de 12 = 3/12 = 1/4 ← respuesta

Hay otras formas de resolverlo. Por ejemplo;

Como los resultados de lanzar la moneda y el dado son independientes:

  • P(Vestido∩negro) = P(Vestido) × P(Negro)
  • P(Vestido) = 1/2
  • P(Negro) = 3/6 = 1/2
  • P(Vestido) × P(Negro) = 1/2 × 1/2 = 1/4 ← mismo resultado
8 0
4 years ago
Is cos theta=cos(-theta)
saul85 [17]

Answer:

TRUE

Step-by-step explanation:

An even function is a function that satisfies that f(x) = f(-x). Also, we know that cosine is an even function, therefore cos(theta) equals cos(-theta).

4 0
3 years ago
Solve for w 14= -7/8w , show your work
cestrela7 [59]

Answer:

Step-by-step explanation:

14 = -7w/8

Cross multiply

-7w = 14 × 8

-7w = 112

w = 112/-7

w = -16

3 0
3 years ago
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