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galben [10]
2 years ago
8

What are the domain and range of the function?

Mathematics
1 answer:
kolbaska11 [484]2 years ago
8 0

Answer:

x = - 2/7

Alternate form: - 0.285714

Step-by-step explanation:

1- Substitute f ( x ) = 0

Reorder

f ( x ) = x x 2 - 16x - 4

2- Collect like terms

0 = 2x - 16x - 4

3- Move the variable to the left

0 = - 14x - 4

4- Divide both sides

14x = - 4

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A coach needs to rank his top 2 players in order. How many possible ways can this be done if there are 25 boys on the team?
likoan [24]
Assuming "top two" are ranked first and second:
The coach can choose one out of 25 for the first and 24 for the second.
So there are 25*24=600 ways to choose.

If "top two" simply means the two best, without distinction, then we divide 600 by two to get 300 ways because the choice of the order can be reversed (AB instead of BA).


3 0
3 years ago
Total
Paul [167]

Answer:

D

Step-by-step explanation:

If you work backwards and add everything up it works.

4 0
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3 years ago
assume the probability of having a boy or a girl is the same. what is the probability of have a boy then a girl then another gir
NNADVOKAT [17]

Answer:

\dfrac{1}{8}

Step-by-step explanation:

If the probability of having a boy or a girl is the same, then

the probability of having a boy = a probability of having a girl = 1/2.

Let B denote boy and G denote the girl.

The sample space of having three children is:

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The probabilities of each of those events is

Pr(BBB)=Pr(BBG)=Pr(BGB)=Pr(GBB)=\\ \\=Pr(BGG)=Pr(GBG)=Pr(GGB)=Pr(GGG)=\\ \\=\dfrac{1}{2}\cdot \dfrac{1}{2}\cdot \dfrac{1}{2}=\dfrac{1}{8}.

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4 years ago
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iren2701 [21]

Answer:

correct do

Step-by-step explanation:

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