6. PQR is a right angle triangle. QS is perpendicular to PR, and PQ has length 1. 1) Find QS and PS in-terms of 0.

2) By considering triangle QSR, find an expression for SR.

3) By considering triangle PQR, find PR in-terms of e.

4) Hence, show that
cos A = sec 0 -sin o tan 0.

Adeli owner keeps track of the to-go orders each day. the results from last saturday are shown in the given two-way frequency table. saturday's to-go deli orders in person by phone online total pick up 38 25 31 94 delivery 35 28 34 97 total 73 53 65 191 what percent of the to-go orders were delivery orders placed by phone? a. 14.66% b. 38.41% c. 28.87% d. 52.83%