X mi/h Two cars start moving from the same point. One travels south at 48 mi/h and the other travels west at 20 mi/h. At what rate is the distance between the cars increasing four hours later? Need Help? Watch It Master It 6. [-/0.83 Points] DETAILS SCALCET8 3.9.018.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a speed of 1.9 m/s, how fast is the length of his shadow on the building decreasing when he is 4 m from the building? (Round your answer to one decimal place.) m/s Need Help? Master It 7. [-/0.83 Points] DETAILS SCALCET8 3.9.021. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The altitude of a triangle is increasing at a rate of 1 cm/min while the area of the triangle is increasing at a rate of 2 cm2/min. At what rate is the base of the triangle changing when the altitude is 10 cm and the area is 100 cm?? cm/min Need Help? Watch It MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 8. [0/0.83 Points] DETAILS PREVIOUS ANSWERS SCALCET8 3.9.050. The minute hand on a watch is 8 mm long and the hour hand is 4 mm long. How fast is the distance between the tips of the hands changing at one o'clock? (Round your answer to one decimal place.) * mm/h Viewing Saved Work Revert to Last Response Submit Answer MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER