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marishachu [46]
2 years ago
6

Pleasee heellppp please

Mathematics
1 answer:
Maksim231197 [3]2 years ago
3 0

Step-by-step explanation:

a)

<u>Fill in the table:</u>

  • Heads | 2 ⇒ 4 ⇒ 6⇒ 8 ⇒ 10 ⇒ 12
  • Tails    | 1 ⇒ 2 ⇒ 3 ⇒ 4 ⇒ 5 ⇒ 6

b)

The score of 4 is obtained in 2 cases out of 12 as per above table.

<u>The probability is:</u>

  • p(4) = 2/12 = 1/6

c)

The score of 10 is obtained once in 12 cases as per table.

<u>The probability is:</u>

  • p(10) = 1/12

<u>Out of 60 times he can score 10:</u>

  • 60*1/12 = 5 times
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Numa caixa estão berlindes vermelhos,amarelos e azuis: 20%dos berlindes são vermelhos,40% são amarelos e o número de berlindes a
Agata [3.3K]

Answer:

200 berlindes

Step-by-step explanation:

Vamos representar

O número total de berlindes na caixa = X

Mármores vermelhos = 20% de X

= 0.2X

Mármores amarelos = 40% de X

= 0.4X

Mármores azuis = 80

Conseqüentemente,

0.2X + 0.4X + 80 = X

Recolher termos semelhantes

80 = X - 0.2X - 0.4X

80 = X - 0.6X

80 = 0.4X

Divida ambos os lados por 0.4

X = 80 / 0.4

X = 200

Uma vez que X representa o número total de berlindes na caixa, portanto, o número total de berlindes na caixa = 200 berlindes

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3 years ago
What is x to the power of 10
Likurg_2 [28]

Answer:

x^10

Step-by-step explanation:

x^10

6 0
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How do you find a nonzero rational number closed under division
vredina [299]

For rational numbers to be closed under division, then any rational number divided by another rational number would have to be a rational number. This works for every rational number except when the second number is 0. Since division by 0 is undefined, dividing any rational number by the rational number zero will not give you a rational number. In order to make the rational numbers closed under division, you can choose any rational number you want except 0.

In other words, the set of rational numbers is not closed under division. The problem occurs only with division by zero. The set of rational numbers from which zero is removed is closed under division.

Every nonzero rational number is closed under division.

6 0
3 years ago
The world population in 2000 was approximately 6.08 billion. The annual rate of increase
Anestetic [448]

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Step-by-step explanation:

8 0
3 years ago
3n - 7 &gt; n + 1 or 4n - 5 &lt; 3n - 3
hodyreva [135]

Answer:

n > 4

Step-by-step explanation:

3n - 7 > <u>n</u> + 1

Move variable to the left side and change its sign

3n <u>- </u><u>n</u> - 7 > 1

...

3n <u>- </u><u>7</u> > n + 1

Move constant to the right side and change its sign

3n - n > 1 <u>+ </u><u>7</u>

...

<u>3</u><u>n - n</u> > 1 + 7

Collect the like terms

<u>2</u><u>n</u> < 1 + 7

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3n - n > <u>1</u><u> + </u><u>7</u>

Add the numbers

2n < <u>8</u>

Divide both sides of the inequality by 2

Solution:

<u>n </u><u>></u><u> </u><u>4</u><u> </u> Answer:

n < 2

Step-by-step explanation:

4n - 5 < <u>3n</u> - 3

Move variable to the left side and change its sign

4n <u>- 3n</u> - 5 < - 3

...

4n <u>- 5</u> < 3n -3

Move constant to the right side and change its sign

4n - 3n < - 3 <u>+ 5</u>

...

<u>4n - 3n</u> < - 3 + 5

Collect the like terms

<u>n</u> < - 3 + 5

...

4n - 3n < <u>- 3 + 5</u>

Calculate the sum

n < <u>2</u>

...

Solution:

<u>n < 2</u>

8 0
3 years ago
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