If (x+3y)=6andxy=2find value of (x^3+27y^3)
Answers
Answered by
0
If x + y = 36, what is the value of xy? (1) y − x = 14 (2) y = 2x + 3 Given x+y=36,x+y=36, which is the equation of a line that has x and y intercept as 36. Consider 1) y−x=14y−x=14 . This is another line equation and intercepts -14 and 14 and will intersect the line x+y=36x+y=36. Hence sufficient , Select A and D Consider 2)y=2x+3y=2x+3. This has intercepts −32−32 and 3 and will intersect the line x+y=36x+y=36. Hence Sufficient. Answer is D. Both are sufficient.
Similar questions