7) This time, I planned on putting some math to work when I visited Golden Gate Park along with my new kite. I made sure my kite was always 100ft above the ground and I was able to calculate that the kite was moving horizontally at a speed of 9ft/s. Then I proceeded to calculate the rate at which the angle between the horizontal and the string was decreasing when I had let out about 250 ft of string. Can you help me determine what that rate was?

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