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

An angle is formed by:
The deciduous dentition consists of __________ teeth. 10 16 20 32
A submarine is descending 2100 feet below the surface .It took 2 hours write an equation to represent the submarines elevation and time
Which of the following is the correct sequence of blood flow in reptiles and mammals? A) left ventricle --> aorta --> lungs --> systemic circulation B
How to do this I don’t understand
What issues will be important when you vote for president
how is the modern day era different from the middle ages
How does a free-form outline differ from a modified outline? A. A free-from outline does not present the essential information. B. A free-form outline does
during the industrial revolution era , why did so many farmers leave their farms in search of jobs in the cities?
Apply the distributive property to factor out the greatest common factor.9+15=9+15=9+15=