Answer:

Step-by-step explanation:
In order to evaluate a function at a given x-value, plug in that value into the actual function

Answer:
cos -60° =
,
cos 660° = 
Step-by-step explanation:
hope it helps
The question 6 is 2,150 meters question 7 is length 10w+64 meters
Width 25w+49 meters
Answer:
-4
Step-by-step explanation:
The equation is in slope-intercept format, y=mx+b. The coefficient in front of the x is the slope as represented by the letter m.