3. The graph shows the distance travelled by a car during 13 seconds of a race. Why is the car changing speed? What is the car's av. speed? What is the car's top speed? 2 300 a putu Estimate when the car is travelling the slowest 100 m Draw a straight line to estimate the car's speed at 15 seconds, 21 B 10 11 12 13 14 15 16 17 18 19 20

The maximum distance (in nautical miles) that a radio transmitter signal can be sent is represented by the expression 1.23h√, where h is the height (in feet) above the transmitter. estimate the maximum distance x (in nautical miles) between the plane that is receiving the signal and the transmitter. round your answer to the nearest tenth.