Suppose a rocket is launched from a platform. The function r(t) = -4.9t+ 200t + 25 gives the rocket's height, h, in meters, in terms of time, t, in seconds. The function h(t) is equivalent to
-4.9(t - 20.41)? + 2,065.82
which way does it open

If x+y+z=0 what is the value of [tex] {x}^{3} + {y}^{3} + {z}^{3} [/tex]

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.