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TiliK225 [7]
2 years ago
6

2(k + 1) = -4(k - 2)​

Mathematics
2 answers:
Kazeer [188]2 years ago
8 0

Answer:

k=1

Step-by-step explanation:

2(k + 1) = -4(k - 2)​

distribute

2k+2=-4k+8

add 4k to both sides

6k+2=8

subtract 2 from both sides

6k=6

divide by 6 on both sides

k=1

Misha Larkins [42]2 years ago
7 0

Answer:

1

Step-by-step explanation:

2(k + 1) = -4(k - 2)

2k + 2 = --4k+8

2k+4k=8-2

6k=6

k=6/6

k=1

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Answer:

Hay 160 maneras

Step-by-step explanation:

Para calcular de cuántas maneras se puede seleccionar x elementos de un grupo de n elementos podemos usar la siguiente fórmula:

nCx=\frac{n!}{x!(n-x)!}

Si vas a elegir 3 personas de entre 6 matrimonios y dos miembros de la misma pareja no pueden ser elegidos, entonces podemos decir que se está eligiendo 3 matrimonios y en cada matrimonio se está eligiendo un representante.

Entonces, podemos calcular de cuántas maneras se puede escoger 3 matrimonios de los 6, así:

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Por lo tanto se puede formar el grupo de 3 personas de 160 maneras diferentes:

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6 0
3 years ago
For the dinner special at a restaurant , the customer must choose a salad, an entree, a side dish, and a dessert... How many din
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