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Katena32 [7]
3 years ago
10

What properties cannot be used in a proof

Mathematics
1 answer:
forsale [732]3 years ago
5 0
I am certain the answer is C. Algebra properties are used in proofs. Postulates are definitely used. And definitions are explanations. So, it is C.
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A ball is chosen at random from a bag containing 150 balls that are either red or blue and either dull or shiny. There are 36 re
tino4ka555 [31]

Answer:

The probability of the chosen ball being shiny conditional on it being red is; 0.375

Step-by-step explanation:

Let A be the event that a red ball has been chosen

Let B be the event that a shiny ball has been chosen

Let S be the total outcomes = 150 balls

Thus;

P(A ∩ B ) = 36/150

A ∩ B' = 150 - 36 - 54

A ∩ B' = 60

Thus; P(A ∩ B') = 60/150

P(A') = 54/150

P(A) = (150 - 54)/150 = 96/150

Thus, probability of the chosen ball being shiny conditional on it being red is;

P(B | A) = P(B ∩ A)/P(A)

Thus; P(B | A) = (36/150)/(96/150)

P(B | A) = 0.375

8 0
2 years ago
Which expression is equivalent to - (4-3)
LenaWriter [7]
This is equivalent to -1 ( 4 - 3 )
which simplified is -1
because 4-3 is 1 and 1 times -1 is -1

Hope this helps ;)
5 0
3 years ago
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What is the value of -16?
timama [110]

Answer:

the answer would be -4

Step-by-step explanation:

5 0
3 years ago
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If 12 oranges cost $4.20, what is the unit price?
Tcecarenko [31]

Answer:

50.4

Step-by-step explanation:

4.20x12

4 0
3 years ago
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3x+15=3(x+5) help please?
UkoKoshka [18]
3x+15=3(x+5)

3x+15=3x+15

3x-3x=15-15

Therefore x can be equal to any value.
3 0
3 years ago
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