The correct answer is d15
The usual rules of addition and multiplication apply to complex numbers as well as to real numbers. The true statements are ...
- x + y = y + x . . . . . . . . . . . . . . . commutative property of addition
- (x × y) × z = x × (y × z) . . . . . . . . associative property of multiplication
- (x + y) + z = x + (y + z) . . . . . . . . associative property of addition
The graph shows the solution of your equations is
.. (x, y) = (-6 2/3, -9 2/3)
The closest point to that of the choices offered is (-5, -7.2).
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The offered "approximations" are not very good approximations.
Answer:
Graph the parabola opening down,
Step-by-step explanation:
With the vertex at (1, 1),factor the quadratic as y < (less than or equal to) –1(x)(x – 2),find the roots of the parabola to be 0 and 2,graph the parabola with a solid boundary line,test a point that is not on the boundary,and shade inside the parabola.