Which conic section does this equation represent?

x^2-4x-y^2+6y-9=5

parabola

ellipse

hyperbola

circle

Hyperbola

Step-by-step explanation:

Lets write variables in square form using completing the square method

LEts group x  and y terms

y^2 terms should be positive always, so we pull out negative sign from y^2

We have negative sign in the middle. so we will get equation in the form of

If we have negative sign in the middle then it is an hyperbola

.24

step-by-step explanation:

the probability is   .24

the first player had the highest probability of getting a silver marble

the game could be made fair by adding back the marble that was drawn after each draw