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RoseWind [281]
3 years ago
10

Expand the expression ​-2.5(-3 + 4n + 8)

Mathematics
2 answers:
Anika [276]3 years ago
4 0

Answer:

2.5+7.5+-10n+-20

Step-by-step explanation:

Multiply everything on the inside by the number on the outside and put it together with addition signs.

-2.5(-3+4n+8)

-2.5*-3=7.5

-2.5(7.5+4n+8)

-2.5*4= -10

-2.5(7.5+-10n+8)

-2.5*8=-20

-2.5+7.5+-10n+-20

Aleksandr-060686 [28]3 years ago
4 0

Answer: 7.5 + 200n

Step-by-step explanation:

(-2.5 • -3) + (-2.5 • 4n) + (-2.5 • 8)

7.5 + -10n + -20

7.5 + 200n

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Answer:

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Step-by-step explanation:

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The angels of a triangle have a sum of 180°. The angles of a rectangle have a sum of 360°. The angels of a pentagon have a sum o
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Step-by-step explanation:

It is given that the angels of a triangle have a sum of 180°. The angles of a rectangle have a sum of 360°. The angels of a pentagon have a sum of 540.

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