Ihave an urn with 10 balls, 5 white and 5 black. i extract a ball from the urn. if the ball drawn is black, i put it back in the urn and add one of the same color. if the ball drawn is white i do not put it back in the urn. what is the probability that both balls are white?

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

step-by-step explanation:

. your answer will contain x - and y -terms. (1 point) x ( ¿¿ 2 − 7 ) 2 +( y 2 − 9 ) 2 √ ¿ 12. what is the distance from the directrix (the crocodile river) to the point ( x , y )? write this equation. your answer will contain a y -term.