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3. If the lines 3x+2ky=2 and 2x+5y+1=0 are parallel, then valueof k is a)-5/4 b)2/5 C)15/4c)15/4 d)3/2.4. The pair of linear equations 4x+6y=9, 2x+3y=6 hasa)no solution b)many solution c)two solution done solution.5. A square and a rhombus are alwaysa)similar b)congruent c)similar but not congruent d)neithersimilar nor congruent.6. In AABC, AB=6V3cm, AC=12cm, BC=6cm, then LB isb)60° C)90° d)45°fline senment joining the points A(-2,8) and B(-ea)120° |
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Answer» 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 |
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