Answer: 
Step-by-step explanation:
You need to use the following formula:
Where "r" is the radius and 
is is the central angle of the arc in radians.
Assuming that that the angle 
is the central angle of the arc, and knowing that the radius is 7 centimeters, you can substitute values into the formula.
Therefore, you get:
The answer for thi question is 2
The answer is (f*g)(3)=36
check the picture below.
now, if we split that triangle like so with that red line, we can use the right-triangle there, to get θ.
Answer:
(-3,-1)
Step-by-step explanation:
