Immigrants in the 1900s were mainly from
a. africa.
c. southern and eastern europe.
b. southern and eastern asia.
d. mexico. user: the blending of culturally distinct groups into a single group with common culture and identity.

Immigrants in the 1900s were mainly from  southern and eastern europe. if we talko baout first decade of 20th cnetury not all 20th century

Remember soh-cah-toasoh: cah: toa: now, looking at the picture we can see that we have an angle, the hypotenuse and want to find the value of the adjacent side to the angle. so we use cah to find the adjacent angle. plug in what we have: we need to solve for x now so we get it by itself on one side: plug this into your calculator and you'll find that:

Use the formula: (n-2)×180, where n is the number of sides(18-2)×180= 28800, now this is the full exterior angle of 18-gon so you divide it by 18.28800÷18=160