Answer:
Equations in options A, B, and D gives the speed less than the speed of the Falcon.
Explanation:
The peregrine Falcon is the fastest known bird with a maximum speed of 320 kilometers per hour.
Now, in option (A) the distance d, in Km and time t, in hours are related to each other by the equation d = 230t.
Therefore, the speed is 230 km/hour which is less than 320 km/hour.
Now, in option (B) the distance d, in Km and time t, in hours are related to each other by the equation d = 3.2t.
Therefore, the speed is 3.2 km/hour which is less than 320 km/hour.
Now, in option (C) the distance d, in Km and time t, in hours are related to each other by the equation d = 2300t.
Therefore, the speed is 2300 km/hour which is greater than 320 km/hour.
Now, in option (D) the distance d, in Km and time t, in hours are related to each other by the equation d = 23t.
Therefore, the speed is 23 km/hour which is less than 320 km/hour.
Hence, equations in options A, B, and D give the speed less than the speed of the Falcon. (Answer)