Answered

  1. Find the circumference of a circle whose radius is 0.7m
  2. A dart is thrown with speed 15 m/s. It hits a dartboard 2.4m away. How long is the dart in the air?
  3. A fair coin is tossed three times. Work out the probability of getting no tails.

Verified Answer :

lekhagummalla
  1. C = 2(pi)(r)        = 2(pi)(0.7)        = 7/5 pi
    So, the circumference of a circle is 7/5 pi.
    2. time = distance/speed            = 2.4/15            = 4/25
    So, the dart is in the air for 0.16(4/25) sec.
    3. I am not sure if this answer is right but I guess the probability of getting no tails is 2:1 (heads:tails)
    HOPE THIS HELPS!!!!

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