Marc s’est rendu de la ville A à la ville B en 3 heures et 45 minutes. Sa vitesse moyenne a été de 80 km/h. Calcule la distance (en km) qui sépare les deux villes? Aide moi svp!

Through: (-3,-3) parallel to y= 7/3x+3

What is the maximum of the sinusoidal function

The length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?