# +
4
48 1. Exprimer le périmètre P de
ce polygone en fonction de x:
a. sous la forme d'une somme;
b. sous la forme d'un produit.
2. Calculer ce périmètre pour :
• x= 3,5
5.
.x = 2​

Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent