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
Answer:
a% of 80 is
80(a/100)
To convert percentages to decimals, divide the number by 100. Thus we divide a by 100.
To find the percentage of a number, multiply its decimal form by the number, thus we multiply 80 by that decimal.
1. 6/7÷2/7 = 3
2. 4/5÷2/5 = 2
3. 4/7÷2 = 2/7
4. 12/13÷3 = 4/13
HOPE THIS HELPS!!!!!!!!!!!
Answer:
C) 7.54
Step-by-step explanation:
first, line up the decimal point, which has been done properly. now, add as though the decimal point doesn't exist, just add normally. you get 754. now, you slide the decimal point down, there are 2 places after the decimal (we assume that 6.8 is 6.80, doesn't change anything), so that's how many will be there in the answer. therefore, 7.54.
