Complete the recursive formula of the geometric sequence −0.6,3,−15,75,...

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

This is about circle theorems. someone asap : (

Find the arc length of the semicircle. 7the grade