What is the radius and center of (y-7)^2=25-(x-3)^2

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a