P(4,8) is a point on a circle, centre o. The tangent at p intersects the axes at points a and b.

Show that the gradient of the tangent is -1/2

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Does anyone know how to do geometryme with this problem

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.