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dmitriy555 [2]
3 years ago
15

Find the height of this isosceles triangle

Mathematics
1 answer:
vitfil [10]3 years ago
6 0

Answer:

2.4

Step-by-step explanation:

00000000000

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I need help please someone
marta [7]

Answer:

B

Step-by-step explanation:

Earths resources are not distributed evenly, take other resources such as gold for example, you can't find gold everywhere, only in certain places.

4 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
The sum of two numbers is 840. one of the numbers is 357. what is the other number?​
nlexa [21]

Answer:

483

Step-by-step explanation:

840 minus 357 is 483

5 0
3 years ago
Which of the following graphs shows a parabola with a vertex of (1,-9) and solutions of (-2,0) and (4,0)?
Mariulka [41]

Answer:

Hello,

Step-by-step explanation:

Roots are -2 and 4

y=k*(x+2)(x-4)

Vertex = (1,-9) is a point of the parabola

-9=k*(1+2)(1-4) ==> k=1

Equation of the parabola is y=(x+2)(x-4)

But you don' t have given the graphs !!!!

3 0
2 years ago
A polygon with 3 vertices is drawn on the coordinate plane. What can you tell about the polygon?
Rus_ich [418]

Answer:

triangle

njjnkj

Step-by-step explanation:

5 0
2 years ago
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