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Ierofanga [76]
3 years ago
8

3n+18= n² solve for n

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
7 0
It =6
i hope this helped you
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Please help, 50 points, will crown brainliest
VashaNatasha [74]
  • Answer:Q1 27.6363636          Q2 304/11 = q1 answer

Step-by-step explanation:

8 0
3 years ago
The proportion of students who own a cell phone on college campuses across the country has increased tremendously over the past
galina1969 [7]

Complete Question

The complete question is shown on the uploaded image  

Answer:

1 ) The correct option B

2) The correct option is  C

3)  The correct option is  C

4)  The correct option is  C

Step-by-step explanation:

From the question we are told that

   The proportion that own a cell phone  is  p = 0.90

    The  sample  size is  n =  15

Generally the appropriate distribution for X is mathematically  represented as

      X  \ is  \ B( n , p )

So  

       X  \ is  \ B( 15 , 0.90 )

Generally the number students that  own a cell phone in a simple random sample of 15 students is mathematically represented as

              \mu  =  n  *  p

              \mu  =  15 *  0.90

              \mu  =   13.5

Generally the standard deviation of the number of students who own a cell phone in a simple random sample of 15 students is mathematically represented as

                \sigma  =  \sqrt{ n *  p *  q }

Where  q is mathematically evaluated as

          q =  1- p

           q =  1- 0.90

           q =  0.10

            \sigma  =  \sqrt{ 15 *  0.90 *  0.10 }

            \sigma  = 1.16

Generally the probability that all students in a simple random sample of 15 students own a cell phone is mathematically represented as

   P(X =  15) =  \left 15} \atop {}} \right.C_{15} *  p^{15} *  q^{15 - 15}    

     P(X =  15) =  \left 15} \atop {}} \right.C_{15} *  (0.90)^{15} *  (0.10 )^{15 - 15}

From the combination calculator  is      \left 15} \atop {}} \right.C_{15} =  1

     P(X =  15) = 1 *  0.205891 *  1

      P(X =  15) = 0.206

7 0
3 years ago
wants to buy a video game that cost $299 and his parents will pay 40% what will be the part he has to pay
viktelen [127]
He will pay $179.4.

40% of 299 = 119.6

299-199.6 = 179.4


To check your answer (or another way to do it is) take 60% of 299 = 179.4
3 0
3 years ago
Read 2 more answers
Which answer best describes the complex zeros of the polynomial function?
dedylja [7]

The function has three real zeros. The graph of the function intersects the x-axis at exactly three locations.

6 0
3 years ago
Z+17=23 what is the anwser​
aliina [53]
The answer is 6 ,17+6=23
8 0
3 years ago
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