Given any two events, E1 and E2, what does the probability P(E1 ∪ E2) represent? A.
One of the events occurs, or both occur.

B.
Neither event occurs.

C.
Both of the events occur.

D.
One of the events occurs but not both.

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone

Which angle of rotation is an angle of rotational symmetry for all figures?

Astudent is solving a system of equations by substitution and comes up with the solution 3 = 3. assuming that he solved the problem correctly, which of the following can be said about this system of equations?