Question

3. If the lines 3x+2ky=2 and 2x+5y+1=0 are parallel, then value
of k is a)-5/4 b)2/5 C)15/4
c)15/4 d)3/2.
4. The pair of linear equations 4x+6y=9, 2x+3y=6 has
a)no solution b)many solution c)two solution done solution.
5. A square and a rhombus are always
a)similar b)congruent c)similar but not congruent d)neither
similar nor congruent.
6. In AABC, AB=6V3cm, AC=12cm, BC=6cm, then LB is
b)60° C)90° d)45°
fline senment joining the points A(-2,8) and B(-e
a)120°​

Answer 1

Step-by-step explanation:

3x+2ky-2=0

2x+5y+1=0

2x+5y=-1

2x/-1+5y/-1=1

x=-2

y=-2

3(-2)+2k(-2)-2=0

-6-4k-2=0

-4k-8=0

k=-1/2