So for the first one it is (x-3)(x+3) this is because it is a difference of squares so you square root the 9 and the minus you do both +and - in order to keep up the -9
The zeros are:x=3 and x=-3 ( this is because you change the sign in the bracket
the others should be pretty simple to do for number 2 its a complex
the third is a simple trinomial
and fourth is simple trinomial as well
Answer:
yes I think so
Step-by-step explanation:
hope this helps sorry if i messed up
Answer:
y>=1/4x+4
y>3x
Step-by-step explanation:
Answer:
Independent events are the events which can't affected by the previous events.
Situation 1) The events are not independent.
∵ the second event took place without replacement that means after first event there would be 14 coins left in the jar(i.e. by picking 1st coin the the total number of coins changed).
Situation 2) The events are independent.
∵ each toss is independent event, as first event doesn't effect the second event.
Situation 3) The events are not independent.
∵the second event took place without replacement that means after first event(after choosing 1 card) there would be 8 coins left in the box.
Situation 4) The events are independent.
∵the second event took place with replacement that means after first event there would be no change in the number of balls in bag .