Determine whether the lines are parallel, perpendicular, or neither.
y=2x+4, y=2x-10

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

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 =

Which of the following is the result of expanding the series