Answer:
12
Step-by-step explanation:
 
        
             
        
        
        
Answers: 
B: <em>The sine function increases on (0°, 90°) and (270°, 360°).</em>
C: <em>The cosine function decreases on (0°, 180°).</em>
E: <em>Both the cosine and sine functions have a maximum value of 1.</em>
F: <em>Both the cosine and sine functions are periodic.</em>
 
        
             
        
        
        
Answer:
x=4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
PQ is perpendicular to RS
that is to mean:
PQ⊥RS
Step-by-step explanation: