Jess recently started a business producing cosmetic products made from natural ingredients. she wants to advertise her products by distributing bags of samples in her neighborhood. she calculated that it takes a person 2 minutes to prepare one bag.
how many hours will it take to prepare 1200 bags of samples if jess and 7 of her friends work simultaneously?

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event a↵ect the mean and standard deviation of the wait time until success?

3c2 + 2d)(–5c2 + d) select all of the partial products for the multiplication problem above.