Austin takes 1 minute and 45 seconds to run three-quarters of a circular track. His rate of motion is π/ radians per second.
1 answer:
Length of circular track is:
L = 2*r*pi
He run 3/4 of it so length is:
L' = 3*2/4*r*pi = 3/2*r*pi
To calculate speed of his movement we use formula:
v = s/t where s = L' and t = 1 minute 45 seconds = 105 seconds
v = L'/t =
v = r* pi/70
If we take that r = 1 answer is
You might be interested in
1) calculate the volume of the tri prism 2) find area of the base face 3) find the height 4) multiply area of the triangle base time height 5) answer will be in cubic units
They most logical answer is A
4/10 is 2/5 or 0.4 in decimal form.
Answer:
<h2>
4 </h2>
Option A is the right option .
sol ution ,
∆ A B C ~ ∆ E D C
putti n g the values ,
Hope this helps . .
Good luck on your assignment . .
The answer is A.
