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1. [-/1 Points] TANAPCALC9 3.6.040M PRACTICE ANOTHER Two cars leave an intersection at the same time, one traveling west and the other, north. Four seconds later the westbound car is is 19 ft from the intersection and traveling at 7 Ft/sec while the northbound car is 27 ft from the intersection and traveling at 14 ft/sec. Find the rate at which the distance between the two cars is changing at this instant. (Round your answer to one decimal place.) ft/s SubmitAnswer 2. [-/1 Points] TANAPCALC9 3.6.050. PRACTICE ANOTHER The volume Vof a cube with sides of length x in. is changing with respect to time. At a certain instant of time, the sides of the cube are 5 in. long and increasing at the rate of 0.3 in./sec. How fast is the volume of the cube changing at that instant of time? cu in/sec. 3. [-/1 Points] TANAPCALC9 3.6.058. PRACTICE ANOTHER A boat is pulled toward a dock by means of a rope wound on a drum that is located 5 ft above the bow of the boat. If the rope is being pulled in at the rate of 6 ft/sec, how fast is the boat approaching the dock when it is 25 ft from the dock? (Round your answer to one decimal place.) ft/sec 4. [-/1 Points] TANAPCALC9 3.6.062. PRACTICE ANOTHER A coffee pot in the form of a circular cylinder of radius 4 in. is being lled with water flowing at a constant rate. If the water level is rising at the rate of 0.7 in./sec, what is the rate at which water is flowing into the coffee pot? (Round your answer to one decimal place.) in3/sec. 5. [-/1 Points] TANAPCALC9 3.6.064. PRACTICE ANOTHER A 25-ft ladder leaning against a wall begins to slide. How fast is the top of the ladder sliding down the wall at the instant of time when the bottom of the ladder is 15 ft from the wall and sliding away from the we | at the rate of 7 ft/sec? Hint: Refer to the accompanying gure. By the Pythagorean Theorem, x2 + y2 = 625. Find dy/dt when x = 15 and dx/dt = 7. (Round your answer to two decimal places.) ft/sec Wall ZS-Pt ladder ixi