A man 7 ft tall walks at a speed of 5 ft/sec toward a street lamp which is 15 ft above the ground. How fast is the length of the man’s shadow decreasing?

One of the complementary angles is 4 degrees mor than the other. find the angles (recall that complementary angles are angles whose sum is 90 degrees.) which of the following can not be used to solve the problem if x represents one of the angles? a. 2x-4=90 b. 2x+4=90 c. x+4=90