Apply distributive property
-9-9x+4=-5
Combine like terms
-5-9x=-5
Add 5 to both sides
-9x=0
Divide both sides by -9
x=0
Final answer: x=0
Answer:
8 times
Step-by-step explanation:
45 minutes, 60 minutes of an hour, so it happens every 45/60 (0.75) hours.
6 hours / .75 hours per REM sleep = 8
You would divide the diameter in half to get the radius. This will give you 16 ft. You then square 16 to get 256. Finally you would multiply this by pi (3.14) to get approximately 803.84 ft sq.
V=317.53
in order to find the volume of a cylinder you use the formula V= (pi) (radius)^2 (height)
in this problem the diameter was 6.36 but you need the radius so you just divide 6.36 in half and you'll get 3.18
first you plug in the radius and height into the formula so it'll look like this V= (pi) (3.18)^2 (10) and get the answer which would be 101.12 then you times that by pi which is 3.14 and you will get 317.53 which is your answer