Obtuse is gonna be ur answer because it's more than 90 degrees!! mark brainliest please!
Um I have no idea what this is but good luck
It would take 9 seconds.
Substituting the values into the equation, we have:
0 = -16t² + 138t + 55
The quadratic formula is:

Inserting our information we have:
Answer: Altitude!!!
Step-by-step explanation:
APEX
Let x represent the # of units produced and sold.
Then
Revenue = Costs
($40)x = $72000 + ($32)x
Solving for x: $8x = $72000. Thus, x = 9000.
Have to make and sell 9000 units to break even here.