Suppose the depth of the diver is d at time time t, rate is given by r=12 1/3 ft/ min. The equation representing the depth of the diver at time t will be: f(t)=200-(12 1/3)t Therefore the depth of the diver after t=4.5 min will be: f(4.5)=200-(12 1/3)*4.5 f(4.5)=200-55.5 f(4.5)=144.5 ft This means that after 4.5 minutes the diver will be 144.5 ft deep.
Answer: The area of a sector is a fraction of the area of the circle. The fraction is equal to the ratio of the measure of the sector’s central angle to one full rotation, or 360°.