Question
If the roots of the equation x² + 5x + k = 0 are real
and equal, find the value of k.Solution
For real and equal roots, the discriminant must be zero: D = b² - 4ac = 0 5² - 4(1)(k) = 0. Thus, k = 25/4 = 6.25. Correct answer : a) 6.25
- Rupali is standing facing south. She walks 16km straight, then turns left and walks another 13km and turns right and walks 7km. Finally turns left and walk...
A man starts walking from point O reaches 5m east at point A. Then he turns to his right and walks 7m to reach point B. Again he turns to his left and w...
Janvi walks 200m towards the east and then turns right and walks 210m to reach a hospital. What is the shortest distance between the starting point and ...
What is the shortest distance between point J and point H?
In which direction point J with respect to point O?
Y is in which direction with respect to D.
What is the shortest distance between I and C?
Point D is 3m to the West of Point R. Point A is 6 m to the North of point D. Point K is 16 m to West of point A . Point K forms a midpoint of the verti...
Point D is 3m to the West of Point R. Point A is 6 m to the North of point D. Point K is 16 m to West of point A. Point K forms a midpoint of the vertic...
I drove 25 km towards east from a city ‘A’ and then turned left and drove another 15 km. Now I turned to my right & drove another 15 km. Finally I t...
