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Alja [10]
3 years ago
9

What are these signs for these expressions???

Mathematics
1 answer:
vekshin13 years ago
8 0

Answer:

look at the photo

Step-by-step explanation:

If you will need any help,don't hesitate to ask

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Expan and simplify the following expression:<br> 3(2a + 3)(2a - 1) - 4 (a^2 - 7)
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= 3(4a^2 + 4a - 3) - 4a^2 + 28
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3 0
3 years ago
Hola esta es mi pregunta
fenix001 [56]

Answer:

Step-by-step explanation:

hola

Cuando dos numeros tienen el mismo signo la respuesta siempre es positiva. cuando un signo es positivo y e lotro es negativo la respuesta siempre sera negativa. Esta es la regla para multiplicar numeros con signos diferentes. el orden de los signos no importa en multiplicacon siempre va ha ser la misma respuesta.

7 0
3 years ago
Raffia had a board that that was 15 1/2 feet long he put three pieces off the board that are each 3 7/8 feet long how much of th
Sonbull [250]
11 5/8 of the board is left.
4 0
3 years ago
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EleoNora [17]

Answer:

second x -1,-3,-5 y 1 3 5 for proportional relation

8 0
3 years ago
What are the sine and cosine of 4π/3?
nignag [31]

Answer:

See below.

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