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REY [17]
3 years ago
5

{x{ x + 4<0 or 6x>-12)

Mathematics
1 answer:
lora16 [44]3 years ago
4 0

Answer:

x\in (-\infty , -4) \cup (-2,+\infty)

Step-by-step explanation:

Solve the system of inequalities:

x + 4 < 0

OR:

6x > -12

The first inequality yields the solution:

x < -4

The second inequality gives the solution:

x > -2

The total solution is the disjunction of the individual solutions, i.e., the union of both.

It can be expressed as

\mathbf{x\in (-\infty , -4) \cup (-2,+\infty)}

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aniked [119]

Answer:

a) $654

b) 27 unidades cuadradas

c) 721

Step-by-step explanation:

a) ¿Cuál es el valor de un bolígrafo cuando la docena se compra por $ 7848?

Una docena = 12

Por eso:

12 bolígrafos = $ 7848

1 bolígrafo = $ x

Cruz multiplicar

12 bolígrafos × $ x = 1 bolígrafo × $ 7848

$ x = 1 bolígrafo × $ 7848/12

$ x = $654

b) Área de un triángulo ¿9 unidades de base y 6 unidades de altura?

Área de un triángulo =

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1/2 × 9 × 6

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Esto se calcula como:

100 × (4,5 + 2,71)

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abruzzese [7]
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What number must be added to the expression below to complete the<br> square?<br> x² - 18x
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\boxed {\boxed {\sf 81}}

Step-by-step explanation:

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The b in the expression is -18.

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This is the number that is added.

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