Un triángulo equilátero es rodeado por una corona de polígonos de n lados de tal manera que no hay espacios o huecos en la corona

For the equations below which statement is true ?

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?

Find the maximum value of p= 4x + 5y subject to the following constraints :