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brilliants [131]
3 years ago
8

HELP!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
3 0

Answer:

c)  C

 y = A e^{\frac{(x-b)^{2} }{c} }  

Step-by-step explanation:

<u><em>Explanation:-</em></u>

<u><em>Normal distribution</em></u>

A random variable 'x' is said to have a normal distribution. if its identity function or probability is given by

f( x,μ,σ) = \frac{1}{\alpha \sqrt{2\pi } } e^{\frac{(x-b)^{2} }{c} }   ...(i)

Here 'b' be the mean of the normal distribution

And σ be the standard deviation

and C = 2σ²

Now, the equation (i) changes to

          y = A e^{\frac{(x-b)^{2} }{c} }      this represents the normal graph

where A = \frac{1}{\alpha \sqrt{2\pi } }   and  C = 2σ²

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-9n plus 9n is zero 3-8 is -5
5 0
3 years ago
Read 2 more answers
54,36,24 whats the next term in the geometric sequence
kodGreya [7K]

Answer:

16

Step-by-step explanation:

The common ratio is 36/54 = 2/3.

So the next term is 2/3 (24) = 16.

3 0
3 years ago
A bag contains only 50 cent coins and $1 bills. The total amount of money in the bag is $36. If there are twice as many 50 cents
vlabodo [156]

Answer:

The total number of 50 cent coins in the bag = 36.

Step-by-step explanation:

Let x be the number of 50 cents coins and y be the number of $1 bills.

We have been given that the total amount of money in the bag is $36. We can represent this information as:

0.5x+y=36...(1)

We are also told that there are twice as many 50 cents coins as $1 bills. We can represent this information as:

x=2y...(2)

Now we will use substitution method to solve our given system of equations. Upon substituting equation (2) in equation (1) we will get,

0.5(2y)+y=36

y+y=36

2y=36

\frac{2y}{2}=\frac{36}{2}

y=18

Now let us substitute y=18 in equation (2) to find our x.

x=2*18

x=36

Therefore, there are 36 fifty cent coins in the bag.



4 0
3 years ago
) The price of a watch is marked Rs 11,250. When it is sold allowing 20% discount,
wlad13 [49]

Step-by-step explanation:

the first step is to find the cost price

when 20% discount=

11250*80/100= 9000

the 20% discounted price is 9000

there is still a 20% profit in this 20% discount

so Cost.Price *120/100=9000

Cost price= 7500

now its asking for discount percentage at 3% profit so first calculate price after 3% profit

7500*103/100= 7725

so discount on rs11250 required to produce 3% profit=

11250*x/100=7725

x= 68.7% discount

7 0
4 years ago
In how many ways can a teacher arrange 4 students in the front row of a class room with a total of 30 students
BARSIC [14]

The student on the left end of the row can be any one of 30. 
                         For each of those ...
The student in the next seat can be any one of the remaining 29.
                         For each of those ...
The student in the next seat can be any one of the remaining 28.
                         For each of those ...
The student on the right end of the row can be any one of the remaining 27.

The total number of ways to pick 4 students and seat them in the front row is

            (30 x 29 x 28 x 27) = <em>657,720 ways.</em>

That's enough to do it a different way every school day for about 3,600 years !
(or until they all graduate, whichever comes first)

4 0
3 years ago
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