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Aliun [14]
2 years ago
11

A box contains 7 red pencils and 5 blue pencils. Without looking, Kamden reaches into the box and chooses 2 pencils, one at a ti

me, without replacement. What is the probability that Kamden chooses 2 blue pencils? А. 25/132 В. 25/144 C. 5/33 D. 5/36​
Mathematics
1 answer:
lesantik [10]2 years ago
8 0

Answer:

The answer is D

Step-by-step explanation:

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Olegator [25]
You should divide 280 into 3 which would equal 9
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How to solve (2.31*10^-6)+(5.87*10^-4)
S_A_V [24]

We want to calculate the following

2.31\cdot10^{-6}+5.87\cdot10^{-4}

Using the properties of exponents, we have that

10^{-6}=10^{-4}\cdot10^{-2}

So we have

2.31\cdot10^{-6}+5.87\cdot10^{-4}=2.31\cdot10^{-2}\cdot10^{-4}+5.87\cdot10^{-4}

So, if factor 10^-4 on the right side, we have

10^{-4}(2.31\cdot10^{-2}+5.87)

Note that

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Then,

5.87+2.31\cdot10^{-2}=5.87+0.0231=5.8931^{}

So we have that

2.31\cdot10^{-6}+5.87\cdot10^{-4}=5.8931\cdot10^{-4}

5 0
1 year ago
An elevator on the 10th floor goes down 9 floors. Then it goes up 19 floors, down 3, and finally down 12. What floor does it end
Ksivusya [100]
It lands on floor 5.
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How to factor expressions?<br> For example 4n + 4 • 2,<br> 10t + 10 • 3, 7v + 7 • 8
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Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

m= 15/7

Step-by-step explanation:

3 0
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