The answer is x = -4 or x = 9
) It bends light rays inward.
Answer:

Step-by-step explanation:
From the figure attached,
Measure of an angle = 20°
Measure of the opposite side = x
Measure of the adjacent side = 12
By applying tangent rule in the given right triangle,
tan(20°) = 


Therefore, equation to get the value of 'x' will be,

Answer:
is this median numbers or mean?
Step-by-step explanation:
Answer:
C. 2/3
Step-by-step explanation:
4/6 is equivalent to 2/3 (divide by 2)