What is the likelihood that black holes exist in our galaxy?

Presence of gravitational collapses and ripples, electromagnetic radiation.

Explanation:

A black hole is a region of the space that shows the gravitational acceleration and thus nor even light can escape it. As predicted by the theory of general relativity the black hole acts as a black body and is formed by the stellar mass of the massive stars and develops by absorbing mass around it.

Amath expression is a collection of one or more terms, which are separated by the signs ( + , - , x , / ).example :   8+b8+b  or  a−3a−3in algebra, an equation is a mathematical statement with two expressions where, each expression is separated by an equal (=) sign. variables can be present on both the sides of the equality (=) sign and we use letters to denote such variables.example 1:   x=4+2x=4+2  , [here, we can observe that the variable is present only on one side of the equation].example 2:   2x+3=x+42x+3=x+4  , [here, we can observe that the variables are present on both side of the equation].

Answer sinking and cooled;