What is 290 million in scientific notation?

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

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32

Simplify. 3(4+4x) (type your answer in with no spaces)