Answer:
square root of the quantity of 10 minus 2 all squared plus 7 minus 1 all squared
Step-by-step explanation:
Our galaxy is 50,000 light years from the center to the edge, but just 1,000 light years thick. It's shaped like a thin disk or cylinder. If the stars were distributed equally throughout the galaxy, how many stars would you expect to find in one cubic light year?
I thought it would be Pi*r^2*l. Then divide that by the number of stars. What am I doing wrong? Thanks, been 20 years since I had to do math like this!
It would be
15/4 < 4.3 < 43/8 < 5.5 < 61/6
Answer:500 cm
Step-by-step explanation:
Given
height of ethan = 180 cm
length of shadow =144 cm
Distance of ethan from lamp =256 cm
from diagram, we can write
From (i) and (ii) we get
So, height of lamp post AB is