Which expression below is equivalent to x4 ‒ y8 ? a. (x2 ‒ y4)2 b. (x2)2 ‒ (y4)2 c. (x2)2 + (y4)2 d. (x ‒ y2)4

A. the probability that a product is defective is 0.1. what is the probability that there will be 1 or less defective products out of the next 8 produced products b.the expected number of imperfections in the coating nylon for parachutes is 6 per 100 yards. what is the probability of finding 12 or fewer imperfections in 260 yards c.in a lot of 54 products there are 9 defective products. calculate the probability that not more than 1 is defective from a random sample of 17 products.