The probability of event A is x, and the probability of event B is y. If the two events are independent, which of these conditions must be true? A.
P(B|A) = y
B.
P(A|B) = y
C.
P(B|A) = x
D.
P(A and B) = x + y
E.

HEL plz

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted

Describe the characteristics of the nile river and the river’s importance to the people of egypt. write a paragraph of at least 5 complete sentences.

List 3 factors commonly used to select the location of a city