taylor477
taylor477 taylor477
  • 01-10-2019
  • Mathematics
contestada

For what value of k does the equation x^2-5x+(k+6)=0 have equal roots?

For what value of k does the equation x25xk60 have equal roots class=

Respuesta :

Аноним Аноним
  • 01-10-2019

Answer:

k = 0.25.

Step-by-step explanation:

For the equation to have equal roots the discriminant b^2 - 4ac = 0.

So for this equation , a = 1, b = -5 and c = (k + 6) so:

(-5)^2 - 4*1*(k + 6) = 0

25 - 4k - 24 = 0

25 - 24 = 4k

4k = 1

k = 1/4

k = 0.25.

Answer Link

Otras preguntas

If x=2a-b2 then a =
How does God solve the problem that the first lines of "The Creation" pose? a. He makes a man. b. He makes the sun and stars. c. He causes rain to fall on Earth
What equation shows an example of the associative property of addition
What does Europe mean
The evolution of populations due to chance is A)genetic drift. B)has more effect in large populations than in small populations. C)gene flow. D)natural selectio
Which term describes the system of continuous water movement on and in the earth? a. precipitation cycle b. erosion cycle c. hydrologic cycle d. vapor cycle
Which of the following body systems work together to remove the waste products of cellular respiration from cells. A. The digestive and respiratory systems B.
What number is 5% of 46?
Could a mixture be made up of only elements ?
Which type of molecule in the yolk of a chicken egg provides the most energy for a developing chick?