SOLUTION: If an object is propelled upward from ground level on Mars with an initial velocity of 130 feet per​ second, its​ height, s,​ (in feet) in t seconds is given by t
Algebra.Com
Question 1065890: If an object is propelled upward from ground level on Mars with an initial velocity of 130 feet per second, its height, s, (in feet) in t seconds is given by the formula s=−13t^2+130t.
How long will it take for the object to be at a height of 208 feet?
The object will be at a height of 208 feet in ____ seconds.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Solve for 
. The smaller of the two roots will be the first time the projectile is at 208 feet and the larger of the roots will be the second time that the projectile is at that height.
John
My calculator said it, I believe it, that settles it
RELATED QUESTIONS
If an object is propelled upward from ground level on Mars with an initial velocity of... (answered by Alan3354)
If an object is propelled upward from ground level with an initial velocity of 224 feet... (answered by stanbon)
If an object is propelled upward from ground level with an initial velocity of 224 feet... (answered by solver91311)
If an object is propelled upward from ground level with an initial velocity of 224 feet... (answered by Alan3354)
If an object is propelled upward from ground level with an initial velocity of 224 feet... (answered by drk)
If an object is propelled upward from ground level with an initial velocity of 92.5 feet... (answered by dabanfield)
If an object is propelled upward from ground level with an initial velocity of 224 feet... (answered by Alan3354)
If an object is propelled upward from ground level with an initial velocity of 224 feet... (answered by Alan3354)
If an object is propelled upward from ground level with an initial velocity of 128 feet... (answered by htmentor)