Given a sphere with radius r, the formula 4pier^2 gives
o a. the volume
o b. the surface area
c. the radius
d. the cross-sectional area

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14