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anzhelika [568]
3 years ago
11

What is the value of y in the equation 2 + y = −3? (1 point)

Mathematics
1 answer:
Ilya [14]3 years ago
8 0

Answer:

- 5

Step-by-step explanation:

2 + y = −3

Subtract 2 from both sides

2 + y - 2 = −3 - 2

Simplifying

y = -5

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In a horse race with 5 horses, you make a bet by predicting the ranking of all 5 horses. Suppose you place your bet at random. W
lapo4ka [179]

Answer:

P( top two horses are predicted incorrectly in incorrect order)

= \frac{1}{2}

Step-by-step explanation:

In the horse race the outcome can be predicted in 5! = 120 ways.

Now suppose the top two horses were predicted incorrectly in incorrect order. Now, the  top horse can be predicted incorrectly in 4 ways.

Suppose the top horse was predicted to be in k-th position where k = 2, 3 ,4,5

so the second horse can be predicted to be in place from 1 to (k - 1)

So, the top two horses can be predicted  incorrectly in incorrect order

in \sum_{k =2}^{5}(k - 1) = 10 ways  

and for each prediction of the two the remaining horses may be predicted in 3! = 6 ways.

Hence ,

P( top two horses are predicted incorrectly in incorrect order)

= \frac{6 \times 10}{120}

=\frac{1}{2}

 

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2 years ago
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7 0
2 years ago
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HELP ASAP!!!! simplify 3^2-4/5
My name is Ann [436]

Answer:

9-4/5

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Step-by-step explanation:

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Describe how the graph of the function is related to the graph of f(x) = x^2
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The length of the triangle for the pool table is the twice the sum of 5 and a number. If the rack is
gayaneshka [121]

Answer:

30 + 6x inches

Step-by-step explanation:

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7 0
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