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Snezhnost [94]
3 years ago
15

There are 8 red, 4 green and 12 yellow balls in a box. If you choose one ball from the box, what is the probability that it will

be a yellow ball?
Mathematics
1 answer:
rusak2 [61]3 years ago
8 0

Answer:

50% percent chance the ball will be yellow

Step-by-step explanation:

Find the amount of all the balls-24 and the amount of yellow balls-12

Then divide the number of yellow balls by the number of total balls.

12÷24=0.5

0.5=50%

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Answer:

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Step-by-step explanation:

6 0
3 years ago
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For the given set, first calculate the number of subsets for the set, then calculate the number of proper subsets. {18, 8, 14, 9
kicyunya [14]

Answer:

Subsets of the given set = 32

Proper subset of the given set = 31

Step-by-step explanation:

Given set is {18, 8, 14, 9, 6} having 5 elements.

We know number of subsets of a set having n elements are represented by

2^{n}

where n is the number of elements in the set.

Therefore, subsets of the given set = 2^{5}

= 32

Since original set itself is a subset of its own, is not a proper subset.

Therefore, proper subset of a set = 2^{n}-1

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= 32 - 1

= 31

7 0
3 years ago
7/10, 3/20, 22/25, 2/5 in order from least to greatest
swat32
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7 0
3 years ago
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nika2105 [10]

Answer:

90 degrees

Step-by-step explanation:

A triangle equals 180

180 - 60

= 120

120 - 30

= 90

Also you can easily get the answer without doing any math because you can see the angle is a right angle

Right angles equal 90

Hope this helps dude

6 0
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Factorise the following. x²-4​
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