The height oin cm of the tip of a second hand on a vertical clock face varies as a function of time in seconds. the second hand is 20cm long, and the middle of the clock face is 225cm above the groundfind the midline and amplitude of the function i (t).

You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

Atransformation t : (x, y) (x-5,y +3) the image of a(2,-1) is