Which ratio of distances is constant for a point on a nondegenerate conic? a. distance to center: distance to directrix c. distance to center: distance to vertex b. distance to focus: distance to vertex d. distance to focus: distance to directrix brain;y

d.

Step-by-step explanation:

For a point on a non-degenerate conic, we have distances, such as the distance to the center, to the directrix, to the focus, or to the vertex.

Now, in this case of a non-degenerate conic, there can be two distances that serve keep a constant relationship due to its geometry and it is:

d. distance to focus: distance to directrix

answer: ok

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116