HURRRY Which equation shows a valid step in solving 3/2x-6+ /2x+6=0?
2
o (/2x-6) - (1/2x+6)
(1/2x-6) - (-:12x+6)
(2/2x-6) = (/2x+6)
(f/2x-6) - (-x/2x+6)
3

If given an equation of a line such as -1/2x+6 how would you create an equation of a line parallel and perpendicula to this line that goes through another point such as (4,10)

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 =

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)