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3 years ago

9

Which relation is a function

1 answer:

Alenkinab [10]3 years ago

3 0

Answer:

Top left

Step-by-step explanation:

In order for it to be a function, it has to pass the vertical line test. So draw a line down the middle of the graphs. If it passes once, then it is a function, if it passes more than once it is not.

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The probability that a certain hockey team will win any given game is 0.3723 based on their 13 year win history of 385 wins out

Whitepunk [10]

Answer:

0.1505 = 15.05% probability that the hockey team wins 6 games in November

Step-by-step explanation:

For each game, there are only two possible outcomes. Either the team wins, or it does not. The probability of winning a game is independent of winning other games. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

The probability that a certain hockey team will win any given game is 0.3723

So $p = 0.3723$

12 games in November

So $n = 12$

What is the probability that the hockey team wins 6 games in November?

This is $P(X = 6)$

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 6) = C_{12,6}.(0.3723)^{6}.(1-0.3723)^{6} = 0.1505$

0.1505 = 15.05% probability that the hockey team wins 6 games in November

4 0

3 years ago

solve quadratic by taking square roots. as=a,-a where a and -a the values you found when when solving. Round to nearest tenth. 2

attashe74 [19]

Answer:

8.1

Step-by-step explanation:

2x^2 -9 = 121

+9 +9

2x^2 = 130

/2 /2

x^2 = 65

x= sqrt (65)

x= 8.06225...

x = 8.1

6 0

3 years ago

Use the table below to make a scatter plot of the data pairs (years since 1960, population) PLEASE HELP

Tpy6a [65]

Take 1960 as 0 then find out next year's

1970=10
1980=20
1990=30
2000=40
2005=45
2010=50

Also

Divide each population by one thousand i.e turn to decimal .

This we done to create the plot on graph easily

The graph has been attached

for the below points

(0,9.706)
(10,10.652)
(20,10.798)
(30,10.847)
(40,11.353)
(45,11.478)
(50,11.576)

7 0

2 years ago

Read 2 more answers

A number y added to 2 is greater than y

pochemuha

Answer:

y+2>y

Step-by-step explanation:

Well, first of all. Adding any sum to y makes it greater then the same variable.

Greater than sign is >. Keeping that in mind now add them. y+2>y is gonna be you’re final answer!

8 0

1 year ago

What is 12 decreased by p?

dsp73

Answer:

12 - p

Step-by-step explanation:

12 - p

8 0

2 years ago