An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 120120 lb and 161161 lb. the new population of pilots has normally distributed weights with a mean of 129 lb129 lb and a standard deviation of 30.6 lb30.6 lb.

Which best explains why this triangle is or is not a right triangle?

How to solve a simultaneous equation involved with fractions?

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]