cinco masas puntuales son situadas en una recta con una distancia de X1=5 y X2=3 posicione a la derecha X3=4, X4=2, X5=6 posicione a la izquierda con una masa de 2,3,1,4,0,5kilogramos. cuál es el centro de masa​

If f(x) = 4x – 3 and g(x) = 8x + 2, find each function value a.f[g(3)] b.g[f(5)] c.g{f[g(-4)]}

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?