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vampirchik [111]
2 years ago
15

Graph y=-2x. give the domain and range. is the function dicrete or continou?

Mathematics
1 answer:
r-ruslan [8.4K]2 years ago
6 0

Answer:

Domain: (−∞,∞),{x|x∈R}

Range: (−∞,∞),{y|y∈R}

Step-by-step explanation:

Find the domain by finding where the function is defined. The range is the set of values that correspond with the domain.

Domain: (−∞,∞),{x|x∈R}

Range: (−∞,∞),{y|y∈R}

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It is known that 10% of the 9-year old children in a town have three siblings. Fifteen 9-year old children are selected at rando
inn [45]

Using the binomial distribution, it is found that there is a 0.0555 = 5.55% probability that more than 3 of these selected children have three siblings.

<h3>What is the binomial distribution formula?</h3>

The formula is:

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

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

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

In this problem, for the parameters, we consider that:

  • 10% of the 9-year old children in a town have three siblings, hence p = 0.1.
  • Fifteen 9-year old children are selected at random, hence n = 15.

The probability that more than 3 of these selected children have three siblings is given by:

P(X > 3) = 1 - P(X \leq 3)

In which:

P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)

Then:

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

P(X = 0) = C_{15,0}.(0.1)^{0}.(0.9)^{15} = 0.2059

P(X = 1) = C_{15,1}.(0.1)^{1}.(0.9)^{14} = 0.3432

P(X = 2) = C_{15,2}.(0.1)^{2}.(0.9)^{13} = 0.2669

P(X = 3) = C_{15,3}.(0.1)^{3}.(0.9)^{12} = 0.1285

P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.2059 + 0.3432 + 0.2669 + 0.1285 = 0.9445

P(X > 3) = 1 - 0.9445 = 0.0555

0.0555 = 5.55% probability that more than 3 of these selected children have three siblings.

More can be learned about the binomial distribution at brainly.com/question/24863377

5 0
2 years ago
Jon has two trees in his yard. One is 29 feet taller than the other. If we let h be the height of the shorter tree, write an alg
inessss [21]

h + h + 29

This will be simplified into 2h + 29

The shorter tree's height is represented with the variable 'h'

Because the taller tree is 29 feet taller, the equation for the taller tree would be 'h + 29'

SInce we're looking for the sum, all you have to do is add 'h' and 'h + 29'

If you have any questions, just ask. Good luck! :))

-T.B.

7 0
3 years ago
16 = n + 3<br> Enter your answer in the box.<br> HELP ME PLEASE
muminat
16 + (-3) = (n+3) + (-3)

N = 13
6 0
3 years ago
Read 2 more answers
What is the distance from (3.5 ,5) to (3.5, -12)<br> 17<br> 7
skad [1K]
The answer is 7 I think
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3 years ago
Find the area of the shaded region:
Deffense [45]

Answer:

34560

Step-by-step explanation:

You have to multiply to get your answer

Hope I'm right...

Hope this helps plz like and brainly :D

6 0
3 years ago
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