Mean: so basically you add up all the numbers (5+12+1+5+7=30) and divide the sum (30) with how many numbers there are (5) so 30/5=6
mode: mode is numbers repeated, since there are two 5's it is the mode (you may also have multiple modes)
Answer:C
Step-by-step explanation:
Answer:
d. 
Step-by-step explanation:
The given trigonometric equation is;

Recall that;



The cosine function is negative in the second and third quadrant.


Answer:
Step-by-step explanation:
E, D, C