math

posted by .

the height in feet of a flare t seconds after it is shot is modeled by h(t)= -16t2+92t+3.5 find its average speed from 1 to 3 seconds

  • math -

    To do that, divide the distance traveled by the time elapsed.

    h(1) = 79.5
    h(3) = 135.5

    so, avg speed is 56ft/2s = 28ft/s

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    If a ball is thrown straight up into the air with an initial velocity of 95 ft/s, it height in feet after t second is given by y=95t–16t2. Find the average velocity for the time period beginning when t=2 and lasting i) 0.1 seconds …
  2. math

    the height, h, of a ball t seconds after it is released for a jump shot in a basketball game can be modeled with the equation h = −16t2 + 12t + 8. The rim of the basket is 10 feet high. Which of the following is the correct way …
  3. Pre-Algebra

    You drop a rock off a bridge. The rock's height, h(in feet above the water), after t seconds is modeled by h=-16t2+541. What is the height of the rock after 2 seconds?
  4. Algebra 1

    Key: *** = my answer 8. A catapult launches a boulder with an upward velocity of 148 ft/s. The height of the boulder, h, in feet after t seconds is given by the function h = –16t2 + 148t + 30. How long does it take the boulder to …
  5. Algebra

    The height of an object after it is released can be modeled by the function f(t)=-16t^2+vt+s, where t is the n?
  6. Math

    A model airplane is shot up from a platform 1 foot above the ground with an initial upward velocity of 56 feet per second. The height of the airplane above ground after t seconds is given by the equation h=-16t^+56t+1, where h is the …
  7. Math

    You drop a rock off a bridge. The rock’s height, h (in feet above the water), after t seconds is modeled by h = -16t2 + 541. What is the height of the rock after 2 seconds?
  8. burns highs school

    f(t) = −16t2 + 160t + 26 and the height in feet of the higher-traveling second flare is given by g(t) = −16t2 + 178t + 39, after t seconds.
  9. math help pls pls pls

    Water coming out from a fountain is modeled by the function f(x) = −x2 + 8x + 2 where f(x) represents the height, in feet, of the water from the fountain at different times x, in seconds. What does the average rate of change …
  10. Algebra

    Water coming out from a fountain is modeled by the function f(x) = −x2 + 8x + 2 where f(x) represents the height, in feet, of the water from the fountain at different times x, in seconds. What does the average rate of change of f(x) …

More Similar Questions