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Marat540 [252]
2 years ago
7

The product of a number and 3 more than twice that number is at most 152.

Mathematics
1 answer:
matrenka [14]2 years ago
8 0

The quadratic equation that represents the product is 2n^{2}+3n-152\leq 0.

We are given in the question that the product of a number and 3 more than twice that number is at most 152.

It is also given that the smaller number is represented by the expression n.

Hence, according to the question, the larger number will be:-

2n+3

The product of the two numbers will be :-

n(2n+3)

It is given that the product of the two numbers is at most 152.

Hence,

n(2n + 3) ≤ 152

Hence, the quadratic inequality comes out to be:-

2n^{2}+3n\leq 152\\

Taking 152 to the left hand side , we get the quadratic inequality,

2n^{2}+3n-152\leq0

To learn more about quadratic equation, here:-

brainly.com/question/17177510

#SPJ4

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Solve the system of equations below
DENIUS [597]

Answer:

The answer is B. (-7,-2)

Step-by-step explanation:

Multiply the first equation by 7,and multiply the second equation by -6.

7(−3x+6y=9)

−6(5x+7y=−49)

Becomes:

−21x+42y=63

−30x−42y=294

Add these equations to eliminate y:

−51x=357

Then solve−51x=357for x:

−51x=357 Divide both sides by -51

x=-7

Write down an original equation:

−3x+6y=9

Substitute−7forxin−3x+6y=9:

(−3)(−7)+6y=9

6y+21=9(Simplify both sides of the equation)

6y+21+−21=9+−21(Add -21 to both sides)

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3 years ago
Solve for x: 2(x+2)-4x+8
ddd [48]
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Can someone please help for brainlest
Scilla [17]

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Step-by-step explanation:

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Find the value of X and give a reason for the relation ship between the angles.
Ostrovityanka [42]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
A cell phone provider classifies its customers as Low users (less than 400 minutesper month) or High users (400 or more minutes
Svet_ta [14]

Answer:

a ) See step by step explanation

b) 50%   and  50%

Step-by-step explanation:

The definition of type of user x is:

if x < 400 minutes  per month  low user

if x > 400 minutes per month  high user

The value for these states are of course yes  or no  ( the user is low or high user)

Then:

if the user is low today  xt  (0)    we have the probability of 80% ( 0,8) of have the user in the same condition and 20% (0,2) of having him or her as high user

xt = 1      

If the user is high today xt (1) is high today we have the probability of 70% ( 0,7) of having  the user in the same condition and 30% (0,3) of having him or her as high user

a) Then we construct the stochastic matrix

 Type of user

         (xt)               xt         xt+1  

      Low (0) or L   0,8        0,2

     High(1)  or H   0,3        0,7

The resulting equation system is:

xt  =  0,8* xt  +  0,2* xt+1

xt+1  = 0,3*xt + 0,7* xt+1

1  =  xt + xt+1

Solving for variables         xt+1  =  1  - xt

xt  = 0,8*xt + ( 1 - xt ) * 0,2

xt - 0,8*xt = 0,2 - 0,2xt

xt - 0,6*xt = 0,2

0,4*xt = 0,2

xt = 0,5       and     xt+1  = 0,5

b)  If in January 0,5  ( 50%) of customesr were  low user

In february  teh % of low user customer wll be

xt  =  0,8* xt  +  0,2* xt+1

0,5 = 0,8*0,5 + 0,2*xt+1

0,5 = 0,4 + 0,2 *xt+1

0,1/0,2 = xt+1        xt+1 = 0,5       or   50%

The same answer for March

7 0
3 years ago
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