The answer is C the 3rd answer choice
Answer:

Step-by-step explanation:
We are given that


Angle of incidence,i=37.5 degree
We have to find the angle of refraction into the water made by ray wit the normal to the surface.
Refractive index of water,
By Snell's law




Again for glass water surface
Using Snell's law
Angle of incidence,i'=22.83 degree




-5x-6=2y then....
y = -2.5x-3 Slope-Intercept form
<span>Simplifying
2x + 8y = 10
Solving
2x + 8y = 10
Solving for variable 'x'.
Move all terms containing x to the left,
all other terms to the right.
Add '-8y' to each side of the equation.
2x + 8y + -8y = 10 + -8y
Combine like terms: 8y + -8y = 0
2x + 0 = 10 + -8y
2x = 10 + -8y
Divide each side by '2'.
x = 5 + -4y
Simplifying
x = 5 + -4y</span>
Answer:
the slope is 6
Step-by-step explanation: