using quadratic formula...
The position s (in feet) at time t (in seconds) of an object moving in a straight line is given by the equation
s=2t²-5t
how many seconds will it take the object to move 25 feet?

The speed of the current in a canal is 4mph. It takes twice as long for a houseboat to go 18 miles upstream as it does for it to go downstream. Find the speed of the boat in still water.

Question

using quadratic formula...
The position s (in feet) at time t (in seconds) of an object moving in a straight line is given by the equation
 s=2t²-5t
how many seconds will it take the object to move 25 feet?

The speed of the current in a canal is 4mph. It takes twice as long for a houseboat to go 18 miles upstream as it does for it to go downstream. Find the speed of the boat in still water.

anonymous · Answer

ooops try that again 
using quadratic formula...

The speed of the current in a canal is 4mph. It takes twice as long for a houseboat to go 18 miles upstream as it does for it to go downstream. Find the speed of the boat in still water.