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True [87]
3 years ago
14

if you randomly place these five CDs on a 5-disc rack, what are the chances that you will place them alphabetically by artist?

Mathematics
2 answers:
aliina [53]3 years ago
4 0

Answer: 1/120

Step-by-step explanation:

There are 5! = 120 ways to place these disks, but only one of them will have them alphabetical by artist. So, if you randomly choose one of these ways, there will be a 1/120 chance you placed them alphabetically by artist.

Dmitriy789 [7]3 years ago
3 0

Answer:

The chances are high beceuse their are only a few disks and the would be easy to put in alphabetically by artist

Step-by-step explanation:

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Para recortar algumas figuras geométricas, um aluno utilizou uma cartolina com 1mx0,8m. Sabendo que ele recortou 2 triângulos, a
Gnom [1K]

Answer:

7190 cm²

Step-by-step explanation:

Para recortar algumas figuras geométricas, um aluno utilizou uma cartolina de 1 m x 0,8m.

Passo 1

Determine a área de todo o papelão

= Temos dimensões = 1mx0,8m

Área = Comprimento × Largura

= 0,8m²

Nós convertemos para cm²

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0,8m² = x cm²

Multiplicação cruzada

0,8m² × 10.000 cm² / 1 m²

= 8000 cm²

Passo 2

Sabendo que recortou 2 triângulos, ambos com 20cm de base e 30cm de altura

Encontramos a área de um triângulo

= 1/2 × base × altura

= 1/2 × 20 × 30

= 300cm²

Ele cortou 2 triângulos Portanto, o são dos dois triângulos = 300cm² × 2

= 600cm²

etapa 3

Ele também cortou 2 trapézios ambos com bases de 10cm e 20cm e altura de 7cm.

A área de um trapézio =

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Passo 4

A área total do papelão que foi cortado = 600cm² + 210cm²

= 810 cm²

Etapa 5

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Isso é calculado como:

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= 8000 cm² - 810 cm²

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3 years ago
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3 years ago
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Step-by-step explanation:

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4 0
2 years ago
The pH level of a solution measures how acidic or basic the solution is. Values between 0 and 7 are considered acidic while valu
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Answer:

  about 2.47

Step-by-step explanation:

Your calculator will tell you ...

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3 years ago
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Answer:

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Step-by-step explanation:

7 0
3 years ago
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