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mixas84 [53]
3 years ago
14

A bag contains 7 red marbles, 3 blue marbles and 5 green marbles. If three marbles

Mathematics
1 answer:
worty [1.4K]3 years ago
8 0

Answer:

3.7%

Step-by-step explanation:

We know that from this situation, the probability of drawing a single green marble is 1/3. However, to find the probability of drawing 3 green marbles, we will need to do:

P= \frac{1}{3}* \frac{1}{3}*\frac{1}{3}

We get a probability of:

P= \frac{1}{27}

This converts to a percentage of:

\frac{1}{27}= 0.037 \\ 0.037*100= 3.7%

We get a percentage of 3.7%

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Answer:

Tn = 4n+3

Step-by-step explanation:

It is an Arithmetic Sequence

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d=11-7 =4

Tn= a+(n-1)d

= 7+(n-1)4

= 7+4n-4

= 4n+3

5 0
3 years ago
1. If a - b = 4 and a + b = 12, what is the<br> value of a?
Nezavi [6.7K]

I think this is what you are looking for:

=−12

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=

−

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a

+

b

=

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(+)2=42

(

a

+

b

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b

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∴2+2=16+2×12=40

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+

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2

−

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b

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∴

(

a

−

b

)

=

64

=

±

8

So, 2−2=(+)(−)

a

2

−

b

2

=

(

a

+

b

)

(

a

−

b

)

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a

2

−

b

2

=

(

4

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(

±

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=

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Hope that helps and sorry if it is confusing!

4 0
3 years ago
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hichkok12 [17]

Answer:

Option B

Step-by-step explanation:

The Europeans moved to American colonies in order to increase their wealth and broaden their influence over world affairs.

7 0
3 years ago
[Help Quick]. Fill in the table using this function rule
alexandr402 [8]

Answer:

9

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Step-by-step explanation:

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4 0
3 years ago
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Which of the following statements is not true of deductive reasoning? It is used when you solve an equation in algebra. It is us
erastova [34]

<u>Answer:</u>

"It is used when you solve an equation in algebra" is the untrue statement.

<u>Step-by-step explanation:</u>

"It is used when you solve an equation in algebra."

When you solve an algebra problem, you are not using deductive reasoning. You are using the information in front of you to correctly answer.

"It is used to make broad generalizations using specific observations."

This is exactly what deductive reasoning is, you are making generalizations and coming up with your own conclusions through observation.

"It is used to prove basic theorems."

This is also true, you can use deductive reasoning by using your specific observations and drawing conclusions to prove the theorems.

"It is used to prove that statements are true."

Using your own observations, you can draw your own conclusions to prove what you are saying is factual.

6 0
3 years ago
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