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GarryVolchara [31]
3 years ago
6

Calculate the discriminant of the quadratic equation. Please I really need your help ​

Mathematics
1 answer:
Marianna [84]3 years ago
3 0

Answer:

The discriminant of the quadratic equation is 0

Step-by-step explanation:

Here, we want to calculate the discriminant of the given quadratic equation

Mathematically, we have the discriminant calculated by the following formula;

D = b^2 - 4ac

where;

b represents the coefficient of x which is -2

a is the coefficient of x^2 which is 1/7

c is the last number which is 7

Substituting these values;

D = (-2)^2 -4(1/7)(7)

D = 4 - 4

D = 0

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Do any of you get this question? Please help!
Alexxandr [17]
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Which of the following explains why f(x) = log4x<br> does not have a y-intercept?
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3 years ago
Pleasee helppp insert two arithnetic means between -5 and 1
Salsk061 [2.6K]

Answer:

a₂ = -3

a₃  = -1

Step-by-step explanation:

We have to  insert two arithmetic means between -5 and 1

Let a₁ and b₂ be the two arithmetic means between -5 and 1

-5, a₂, a₃, 1

Here,

  • a₄ = 1
  • a₁ = -5

We know that the nth term of an Arithmetic sequence

aₙ = a₁ + (n-1)d

a₄ = -5 + (4-1)d

1 = -5 + 3d    

1  + 5 = 3d

3d = 6

Dividing both sides by 2

d = 2

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a₂ = a₁ + (2-1)d

a₂ = -5 + d

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a₂  = -3

a₃ = a₁ + (3-1)d

a₃  = -5 + 2d

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Thus,

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Thus, the sequence becomes:

-5, -3, -3, 1

3 0
3 years ago
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