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Gnesinka [82]
3 years ago
12

If the discriminant of a quadratic equation is positive, which of the following is true of the equation?

Mathematics
2 answers:
gregori [183]3 years ago
6 0

Answer:

it is b. it has two real solutions.

Step-by-step explanation:

Yanka [14]3 years ago
3 0
For this case suppose that we have a quadratic equation of the form:
 ax ^ 2 + bx + c

 The solution to the quadratic recuacion is given by:
 x =  \frac{-b +/-  \sqrt{b^2 - 4ac}}{2a}
 Where,
 The discriminant is:
 b ^ 2 - 4ac

 When the discriminant is greater than zero, then the root is positive, and therefore, we have two positive real solutions.
 Answer:
 
B. it has two real solutions
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Answer:

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Step-by-step explanation:

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3 years ago
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elena-s [515]

More than means addition.

C is the correct option.

= (2x + 4) + 9 - 4y + 3x

= 2x + 4 + 9 - 4y + 3x

= 5x + 13 - 4y

= 5x - 4y + 13

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2 years ago
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sergeinik [125]

Answer:

∠ 4 = 130°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ 4 is an exterior angle of the triangle , so

∠ 4 = ∠ 1 + ∠ 2 ( substitute values )

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x + 9 = 20 ( subtract 9 from both sides )

x = 11

Then

∠ 4 = 11x + 9 = 11(11) + 9 = 121 + 9 = 130°

your friend may have only calculated ∠ 1

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2 years ago
Use the Distributive Property to find the Product 4 and 2/5 × 10
arlik [135]
Distributive Property ( A number, n, is multiplied to the expression in parentheses)

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3 years ago
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