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3 years ago

I neeeddd helppppppppp

Mathematics

1 answer:

Marina CMI [18]3 years ago

6 0

Answer:

Step-by-step explanation:

A and D are opposite.

A is in the negative side and d is in the positive side.

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Once I lower the points because I'm going broke and won't be able to ask any questions , NOBODY ANSWERS.

Georgia [21]

Answer:

uh just answer a question

Step-by-step explanation:

8 0

3 years ago

Assume that there are an equal number of births in each month so that the probability is that a person chosen at random was born

NikAS [45]

Answer:

0.2773 = 27.73% probability that at the May celebration, exactly two members of the group have May birthdays

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they have a birthday in May, or they do not. The probability of a person having a birthday in May is independent of any other person. This means that the binomial probability distribution is used 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.

Probability of a person being in May:

May has 31 days in a year of 365. So

$p = \frac{31}{365} = 0.0849$

Group of 20 friends:

This means that $n = 20$

What is the probability that at the May celebration, exactly two members of the group have May birthdays?

This is P(X = 2).

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

$P(X = 2) = C_{20,2}.(0.0849)^{2}.(0.9151)^{18} = 0.2773$

0.2773 = 27.73% probability that at the May celebration, exactly two members of the group have May birthdays

3 0

3 years ago

63 student has to be 4 student in each group who won’t be in a group

alina1380 [7]

Answer:

15×4=60 and 3 people will be left without a group of 4

8 0

3 years ago

Read 2 more answers

Find the rate of change and initial value. Y=mx+b

tekilochka [14]

Y= 4/5 x + 24
To find the rate of change you find the difference in each of the numbers on the graph. For example, 36-32 is 4. So 28-4 is 24 and that would be the next number down. It would also match x to be 0 because since the rate of change for x was 5, if you subtract 5 from 5 you get 0. So from this we know that the coordinates would be 0,5.
From this info, the slope would be 4/5 and the y intercept or initial value would be 24

4 0

3 years ago

Digital Literacy Semi Activity 5.1.1 - Telecommunications Review1. Match the parts of software applications with what they do:Al

Ilya [14]

1-g

2-f

3-a

5-g

6-h

7-b

8-a

3 0

1 year ago