Genghis Motors wants to build cars and motorbikes on a budget. The company plans to spend at most $75000 and use at least 320 wo
rkers to build cars and motorbikes. 8000C+5500M≤75000 represents the number of cars C and motorbikes M the company can build by spending at most $75000.
52C+38M≥320 represents the number of cars and motorbikes the company can build by using at least 320 workers.
Can the company meet both of its expectations by building 4 cars and 6 motorbikes?
We know that applying the law of cosines a² = b²+ c²<span> – 2*b*c*cos(A) </span> in this problem a=? b=20 c=9 A=90° so a² = b²+ c² – 2*b*c*cos(A) but cos (A)=0 a² = b²+ c²-----> 20²+9²----> a²=400+81----> a²=481-----> a=√481 a=21.93-----> a=22