A rock is thrown off a bridge into the water. The path of the rock can be modeled by the function h=-4.9t^2 +18t +15 where h=height in metres and t=time in seconds. a. When will the rock hit the water? b. For how long will the rock be above 20m? c. What is the maximum height that the rock reaches?

Q: A cat is falling from a branch. Its height t seconds after it fell is given by the function h(t) =…

A: We have given height  ht=-16t2+5 To get for what height cat was falling  Put t=0 h0=0+5 h0=5 height…

Q: The equation y = 50(1.05) models the growth of a mule deer population introduced into Guadalupe…

A:

Q: h) Write an equation for a function with roots: 5, -7, 0 Write an equation for this same function if…

A: Solving the problem by finding the equation.

Q: The quadratic function h(t) = -16.1t2 + 150 models a ball's height, in feet, over time, in seconds,…

A: The ball is dropped at t=0. Thus, putting t = 0 in the given quadratic function h(t) = -16.1t2 + 150…

Q: A young boy shoots a rocket off of a table and the height of the rocket in meters is given by h(t) =…

A: Here we have to find the time and height.

Q: The rocket splashes down after how seconds. h(t)=−4.9t^+40t+87

A:

Q: A punter in football kicks a football high in the air. The height of the football can be given by…

A: A. Consider the given function, hx=-0.009x2+1.61x+2 Substitute x=0 to get the initial height of the…

Q: Given S= -10T^2+4. Is S a function of T? Explain your choice using the definition of a function.

A: Given,    S= 10T² + 4   Yes, here S is function of T.  Thus, S = f(T) = 10T² + 4

Q: of

A:

Q: every Saturday morning,you go for a jog.the distance you jog can be modeled by the equation…

A: every Saturday morning,you go for a jog.the distance you jog can be modelled by the equation…

Q: Red aerial mini-flares are used by some boaters in an emergency. The flight of one brand of flare,…

A:

Q: 0001.08x  describes the growth of an investment (in dollars) based on the number of years it's been…

A: Basic calculation

Q: NASA launches a rocker at t=0 seconds. its height, in meters above sea level, as a function of times…

A: Given:  h(t)=-4.9t2+349t+190 Since Rocket will splash down  ⇒h=0 ⇒-4.9t2+349t+190=0…

Q: The rocket splashes down after    seconds. How high above sea-level does the rocket get at its…

A: We need to find the time after which rocket splashes ground and peak using the given function.