The first year you obtain your Professional Engineer seal, you design and observe construction of 3 small roadways with culverts, each of which is in a different area of the country. All of these roads are designed to pass a 50-year storm since they are not major roads where loss of life or damage to property is likely if they are flooded. After that first year, you never design another culvert for the rest of your career since you move into management. What is the probability that at least one of those 3 roads will be overtopped in one given year. What is the probability for your anticipated 40-year career?

Secured loans are protected by collateral security. examples: title loans where the borrower uses the car title as collateral security interest rates are lower and repayments are longer therefore risk is low as a collateral security is given as guarantee to the bank in case of failure to pay the loanunsecured loans are not protected by collateral security but it is given on the creditworthiness of the borrower, trusting that she/he will pay on time. examples; payday loans is a short term loan where the borrower lends money from the bank and pays is back when the borrower receives his/her wages.interest rates are high and repayments are shorter. but the risk is high as no collateral security is given as a guarantee to the bank for payment of the loan

Ithink that it would mean that they "go off," as in get extremely mad at, a person and tell them off, or tell them what is wrong in an extremely abrupt and angry way.