Question

hsiehejqbdnnrkwlsnw​

Answer 1

Answer:

plz mark brainlest

Step-by-step explanation:

b²-4ac=0

-(-2)²-4×1×k=0

-4-4k=0

-4= 4k

k= -1

Answer 2

3x-y-5=0

6x-2y+k=0

Where a1=3, b1= -1, c1= -5

a2=6 b2= -2 c1=k

Step-by-step explanation:

If two equations has no solution then,

a1/a2=b1/b2 is not equal to c1/c2

so, -1/-2 is not equal to 5/k

so, k is not equal to 5×2

or, k is not equal to 10