The vertex of the parabola is at (-3,-2) which of the following could be its equation

a; x=-2(y+3)^2-2
b; x=-2(y-2)^2-2
c; x=-2(y-2)^2-3
d; x=-2(y+2)^2-3

 D;x=-2(y+2)^2-3

Step-by-step explanation:  since,(-3,-2) is the vertex of parabola this means that when y=-2, x must be equal to -3    

but this is true only in D part

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

step-by-step explanation: