A commercial aircraft gets the best fuel efficiency if it operates at a minimum altitude of 29,000 feet and a maximum altitude of 41,000 feet. Model the most fuel-efficient altitudes using a compound inequality. x ≥ 29,000 and x ≤ 41,000 x ≤ 29,000 and x ≥ 41,000 x ≥ 41,000 and x ≥ 29,000 x ≤ 41,000 and x ≤ 29,000

Answer:[tex]x\geq 29,000[/tex]  and  [tex]x\leq 41,000[/tex]Step-by-step explanation:Letx -----> the altitude of a commercial aircraftwe know thatThe expression " A minimum altitude of 29,000 feet" is equal to[tex]x\geq 29,000[/tex]All real numbers greater than or equal to 29,000 ftThe expression " A maximum altitude of 41,000 feet" is equal to[tex]x\leq 41,000[/tex]All real numbers less than or equal to 41,000 ftthereforeThe compound inequality is equal to[tex]x\geq 29,000[/tex]  and  [tex]x\leq 41,000[/tex]All real numbers greater than or equal to 29,000 ft and less than or equal to 41,000 ftThe solution is the interval ------> [29,000,41,000]