First one A thats the answer
The electruc charge is plus two as it loses electrons and gains positive charge
Answer:
Axis of symmetry: x = –1; Vertex: (–1, 0); f(x) = –2x2 – 2x – 1
Step-by-step explanation:
What are the vertex and axis of symmetry of the equation?
The axis of symmetry always passes through the vertex of the parabola . The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, y=ax2+bx+c , the axis of symmetry is a vertical line x=−b2a .
Answer:
Yes
Step-by-step explanation:
because
1x24=24
2x12=24
3x8=24
4x6=24
X^2+8x-3>-19 | +19
x^2+8x+16>0
x^2+4x+4x+16>0
x(x+4)+4(x+4)>0
(x+4)(x+4)^2>0
this is true cause (X+4)^2 >0 cause X+4>0