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azamat
3 years ago
15

Name the property used to make the conclusion. If x=y and y=4, then x=4.

Mathematics
1 answer:
Elena L [17]3 years ago
7 0
That would be the transitivity of the equality.
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A pyramid has 7 faces
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2 years ago
In a large population, 60 % of the people have been vaccinated. If 5 people are randomly selected, what is the probability that
Delvig [45]
<h3>Answer:    0.98976</h3>

===========================================================

Explanation:

60% of the people have been vaccinated, so 40% have not.

The probability of getting five people in a row that aren't vaccinated is (0.40)^5 = 0.01024

Subtract this from 1 to get the probability of at least one vaccinated person in the sample of five.

1-0.01024 = 0.98976

This works because the events "at least one vaccinated" and "none vaccinated" are complementary. One or the other must happen, which means the two probabilities add to 1.

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2 years ago
You are given that claims are reported according to a homogeneous Poisson process. Starting from time zero, the expected waiting
maxonik [38]

Answer:

1.732

Step-by-step explanation:

You are given that claims are reported according to a homogeneous Poisson process

LetX be the waiting time from 0 to second claim

X is Poisson with averageof 3 hours.

We know in a Poisson distribution the mean = variance

Hence average waiting time = mean = 3

This will also be equal to var(x)

Var(x) = mean of Poisson distribution= 3

Hence standard deviation = square root of variance

=\sqrt{3} \\=1.732

7 0
3 years ago
What does sin(-u) equal?<br> .<br> .<br> .<br> .<br> .<br> .<br> .<br> PLEASE HELP!!!
blsea [12.9K]

Answer:

-sin(u)

Step-by-step explanation:

This is a Trig identity.  The best way to understand this is to start at zero degrees.  +u would move counterclockwise, while -u moves clockwise.  The sine function gives you how far in the y-direction you are from the x-axis.  Since you're moving the same amount by going u degrees (or u radians) around the circle as you would going -u degrees (or -u radians), your distance from the x-axis is the same.  But it reflects over the x-axis, so the two outcomes are inverses of each other.

3 0
3 years ago
Triangular numbers can be represented with equilateral triangles formed by dots. The first five triangular numbers are 1, 3, 6,
Novosadov [1.4K]
Position in the sequence    triangular number    relation

1                                          1                              1 = 1*(1+1)/2

2                                          3                              3 = 2(2+1)/2

3                                          6                              6 = 3(3+1)/2

4                                         10                            10 = 4(4+1)/2

5                                         15                              15= 5(5+1)/2

Call n the position in the sequence, then the triangular number is: n(n+1)/2
 



7 0
3 years ago
Read 3 more answers
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