un vehículo ha tardado 23 minutos en recorrer 86 km por hora Si suponemos que no cambio de velocidad en el trayecto Qué velocidad lleva cada segundo​

You invested $5000 between two accounts paying 4% and 9% annual interest, respectively. if the total interest earned for theyear was $350, how much was invested at each rate? $was invested at 4% andwas invested at 9%.

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?