Wednesday
July 30, 2014

Homework Help: Math

Posted by Nicole on Tuesday, October 18, 2011 at 2:43pm.

A person standing close to the edge on the top of a 160-foot building throws a baseball vertically upward. The quadratic function

s(t) = -16t^2 +64t + 160

models the ball's height above the ground, s(t), in feet, t seconds after it was thrown.

After how many seconds does the ball reach its maximum height? What is the maximum height?



___________________________________





A person standing close to the edge on the top of a 160-foot building throws a baseball vertically upward. The quadratic function

s(t) = -16t^2 +64t + 160

models the ball's height above the ground, s(t), in feet, t seconds after it was thrown.


How many seconds does it take until the ball finally hits the ground? Round to the nearest tenth of a second.

_______________________________________

The equation shown below models the head circumference of severely autistic children, y, in centimeters, at age x months.

y = 4(sqrt x) + 35

According to the model, what is the head circumference at birth?

_____________________________________


Write an equation in vertex form of the parabola that has the same shape as the graph of f(x) = 2x^2, but with the point (7, 4) as its vertex.

_____________________________________

Find the coordinates of the vertex for the parabola defined by the functionf(x) = -3(x-2)^2 + 12.

________________________________________


Find the coordinates of the vertex for the parabola defined by the functionf(x) = -3(x-2)^2 + 12.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Math - An object is thrown from the top of an 80 foot building with an initial ...
Algebra; Help immediately. - The height of a ball that was batted into the air ...
Math - An object is propelled vertically upward from the top of a 144-foot ...
Math - If a baseball is projected upward from ground level with an initial ...
math - A projectile is launched vertically upward from the top of a 240-foot ...
MATH - A projectile is launched vertically upward from the top of a 240-foot ...
math - A projectile is launched vertically upward from the top of a 240-foot ...
physics - A rock is shot vertically upward from the edge of the top of a tall ...
calc - a stone is thrown striaght up from the roof of an 80 foot building. the ...
math - A person standing on the roof of a building throws a ball directly upward...

Search
Members