Eric has made great progress in rehabilitating his knee with his physical therapist. The therapist measures the angle of Eric's fully bent knee as 45o. This angle is represented by ∠BCD in the diagram. Eric then extends his leg until it is completely straight, 180°. What is the full range of motion of Eric's knee, m∠ACD? Help? Please, i been stuck on this nonsense for 15 mins now. （；´д｀)

What is the shape of the height and weight distribution

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?