Cost of Trans-Atlantic Travel A Boeing 747 crosses the Atlantic Ocean (3000 miles) with an airspeed of 500 miles per hour. The cost C (in dollars) per passenger is given by where x is the ground speed (a) What is the cost per passenger for quiescent (no wind) conditions? (b) What is the cost per passenger with a head wind of 50 miles per hour? (c) What is the cost per passenger with a tail wind of 100 miles per hour? (d) What is the cost per passenger with a head wind of 100 miles per hour?

M303 Section 1.2 Notes- Row Reduction and Echelon Forms 8-26-16 Elementary row operations- to obtain equivalent systems o Row replacement- replace some row with row + (row ′) for some ℝ; adding a multiple of another row to the row in questio; + ′ o Row swap- ↔ o Scaling- multiply row by nonzero number ; → o DON’T FORGET to do operations to augmented column too o Every operation reversible o 2 matrices and are row equivalent ( ~ ) if can be obtained from via finite sequence of elementary row operations If