Answer:
10
Step-by-step explanation:
you derive the answer by taking the total length of the pipe (7 1/2 foot), divided by the length of each piece (3/4 foot).
7 1/2 ÷ 3/4 = <u><em>10</em></u>
Answer;
x = 0.6 and x = -1.75
80x2+92x−84=0
Use quadratic formula
x = (−b ±√(b2−4ac))/√2a
x = (-92 ± √(35344)) / 160
x = 95/160 and x = -280 / 160
-10
hope this helps :)
