xxbossbrianxx1750 xxbossbrianxx1750
  • 17-04-2019
  • Mathematics
contestada

If the discriminant of a quadratic equation is equal to -9, which statement describes the roots?

Respuesta :

kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 27-04-2019

ANSWER

No real roots.

The roots are complex or imaginary.

EXPLANATION

The quadratic equation

[tex]a {x}^{2} + bx + c = 0[/tex]

has discriminant,

[tex]D = {b}^{2} - 4ac[/tex]

If the discriminant is less than zero , then the quadratic equation has no real roots.

The given discriminant is -9.

Since -9 is less than zero, it means the quadratic equation has complex or imaginary roots.

Answer Link

Otras preguntas

Explain the political slogan "Proletarians of the world, unite"! Please
12. Change the fraction 4/13 to a decimal. Round off to the nearest thousandth
All indicate that the universe is a. rotating. b. expanding. c. shrinking. d. at equilibrium.
Humanism influences Renaissance art and scholarship by advocating a return to
Explain the political slogan "Proletarians of the world, unite"! Please
I need three more of colloquialisms plzzz
Find the distance between the points on the coordinate plane. Points / and C. A: -2 B: 2 C : 4 D : 5
What are primary sources? a. unreliable sources b. original research or documents c. unoriginal research d. compiled documents
Which of the following is not a benefit of building a dam? a. flood control c. generating hydroelectric power b. irrigation d. increased need for fertilizer
Help please!!!!!!!!!!!!!!!