9x^2 - 8x - 1 = 0
(9x + 1(x - 1) = 0
x = -1/9 , 1
x intercepts are -1/9 and 1.
Answer: The required probability is 
Step-by-step explanation:
Since we have given that
Number of people came into Brad's store = 48
Number of them made a purchase = 40
So, the experimental probability that the next person to come into the store will make a purchase would be

Hence, the required probability is 
Answer:
a multiple b
Step-by-step explanation:
a x b = ab
eg. a = 5 , b = 2
ab = 5x2