Suppose your business has a special checking account used just for paying the phone bill. the balance is $740.00 this month. next month the balance will be $707.60, after that it will be $675.20, and on the third month the balance will be $642.80. write an explicit formula to represent the balance in the account as an arithmetic sequence. how many months can you pay your phone bill without depositing any more money in the account?

Here is my question! jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?

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?

What is the perimeter of a rectangle if the length is 5 and the width is x?