Write 4.706 × 1011 in standard notation 47,060,000 470,600,000,000 470,600,000,000,000 47,060,000,000

Ineed ! the person who answers and shows their work on they got the answer first will be marked the !

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.