If (a+bi)^2=2abi, what must be the relationship between a and b? show or explain your reasoning.

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Describe the domain and range of y=2(3)^x-2+5

Acircle has a circumference of 7.850 units. what is its radius?