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DIA [1.3K]
3 years ago
7

Please answer this correctly

Mathematics
1 answer:
Oksana_A [137]3 years ago
6 0

Answer:

1/9

Step-by-step explanation:

The answer is 1/9 because we already know the only even number on the spinner is 8.  We have a 1/3 chance on landing on 8.  Then it says we have to land on 7.  There is also a 1/3 chance for landing on 7.  So from this information, we do (1/3)*(1/3)=1/9

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Three fair dice are rolled, one red, one green and one blue. What is the probability that the upturned faces of the three dice a
r-ruslan [8.4K]

Answer:   \dfrac{5}{9}

Step-by-step explanation:

When we throw a die , Total outcomes =6

When we throw 3 dice , Total outcomes = 6 x 6 x 6 = 216 [by fundamental counting principle]

Given : Three fair dice are rolled, one red, one green and one blue.

Favorable outcomes : When the upturned faces of the three dice are all of different numbers i.e. no repetition of numbers allowed

By Permutations , the number of favorable outcomes = ^6P_3=\dfrac{6!}{(6-3)!}=\dfrac{6!}{3!}=6\times5\times4=120

The probability that the upturned faces of the three dice are all of different numbers = \dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}

=\dfrac{120}{216}=\dfrac{5}{9}

The probability that the upturned faces of the three dice are all of different numbers  is \dfrac{5}{9} .

7 0
2 years ago
If f(x) = 4x - 3, evaluate f(2).
hjlf

Answer: f(2) = 5

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8 0
3 years ago
Teachers are being trained to standardized the scores they give to students' essays. The same essay was scored by 10 different t
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Answer:

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6x+20=68

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