Answer:
V = 15/4π = 3.75π
Step-by-step explanation:
V=πr^2h
V=π(1/2^2)15
V=π(1/4)15
V=15/4π
Answer:
Ф=144
Ф =s/r ( Ф is the central angle,s is the arc length, r is the radius)
find r:
radius =circumference/2π=1/2π=0.16
Ф=(2/5) /(1/2π)=4π/5=144 degree (π=180)
Ф in degrees: 144 degrees
Answer:
15
Step-by-step explanation:
let r represent red marbles then white = 2r + 5 and total is 20, thus
r + 2r + 5 = 20 ( subtract 5 from both sides )
3r = 15 ( divide both sides by 3 )
r = 5 ← number of red marbles
Thus number of white = 20 - 5 = 15
You do (3)*(3)*(3)= 27
Then you do (4)*(4)*(4)= 64
Now you add them 27*64= 1728
I know this is correct because I am doing the same thing in my math class.
Hope this helps. :)
top speed of a peregrine falcon is 240 miles per hour
240 x 1/5 = 48
48-1 = 47
sailfish can swim 47 miles per hour
