What is the frequency of the function
y = 5/3cos(sqrt 2x - pi/4)?

Adeli charges the same price, $5.50, for all of its different sandwiches. if a company ordered n sandwiches for a luncheon, which equation could be used to find the total price, p, that the deli charged for the sandwiches? a- n/5.50=p b-5.50n=p c-5.50/n=p d-5.50+n=p

Ineed someone to me answer my question i have to have this done and knocked out

Which geometric principle is used to justify the construction below?