A ray of light is incident on a glass slab making an angle of 60° with the surface. Calculate the angle of refraction in glass if the refractive index of glass is 1.5 1) sin-'(1/3)
2) 30°
3) 45°
4) 50°

glide reflection.

its mainly because the pattern will be infinite and will never end. it will look like a gilder or like a filpbook when set to motion.

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.