If a and b are independent events then it must be true that p(b|a)=p(a). true or false

Step-by-step explanation:

If two events A and B are independent events, this means that outcome of one of them doesn't influence the probability of happening the other event. The formula to find probabilities of independent events is

The first formula is used when we want to find the probability of an event to occur and the other.

The second formula is used then we want to find the probability of an event to occur or the other.

Basically, "and", "or", are the keys to know which one to use.

Therefore, the statement is completely false.

the line of

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

step-by-step explanation: