In Circle o, AOC is a diameter, ADB is a secant, and BC is a tangent. If the measure of arc DC is 3 less than twice the measure of arc AD, find the missing angle or arc
Find the measure of arc DC

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Do some research and find a city that has experienced population growth. determine its population on january 1st of a certain year. write an exponential function to represent the city’s population, y, based on the number of years that pass, x after a period of exponential growth. describe the variables and numbers that you used in your equation.

What’s the answer ? use the picture to see the problem