A) y=-4x^2+8 B) y=4x^2-8 C) y=8-4x^2 D) y=4x^2+8
A) y=-4x^2+8 B) y=4x^2-8 C) y=8-4x^2 D) y=4x^2+8
The cost C of manufacturing x wheels at Ravi's Bicycle Supply is given by the function C(x)=0.5x^2-170x+25,850 What is the minimum cost of manufacturing wheels? Do...
A person standing close to the edge on top of a 60-foot building throws a ball vertically upward. The quadratic function h(t) = -16 t^2 + 68 t + 60 models the ball's height about the ground,...
A tour operator believes that the profit P, in dollars, from selling x tickets is given by P(x)= 50x − 0.25x2. Using this model, what is the maximum profit the tour operator can expect?
The height s, in feet, of a rock thrown upward at an initial speed of 64 ft/s from a cliff 49 ft above an ocean beach is given by the function s(t) = −16t2 + 64t + 49, where t is the time...
For the quadratic function (x)=-1/3(x+6)(x+6)+3, tell whether the graph opens up or down; wider or narrower; vertex and axis. Ok so I think I have the idea for this Vertex:...
Suppose you throw a ball straight up from the groin with a velicity of 80 ft/s. As the ball moves upward, gravity slows it. Eventually the ball begins to ball back to the ground. The height h...
Table: x | y ----- -2|-18 0 | -4 2 | -14
Write in factored form.
The height y of a parabolic arch is given by y=-1/16x2+40, where x is the horizontal distance from the center of the base of The arch. All distances are in feet. What is the highest point on the...
The expression p(x)=2500x-2x2 describes the profit of a company that customizes bulldozers when it customizes x bulldozers a month. How many bulldozers per month must the company customize to...
Suppose you throw a ball straight up from the ground with a velocity of 180 ft per second. As the ball moves upward, Gravity slows it. Eventually the ball begins to fall back to the ground. The height...
Find two numbers whose sum is 78 and whose product is a maximum
A building contractor wants to fence in a rectangular plot adjacent to a straight highway using the highway for one side, which will be left unfenced. If the contractor has 500 feet of fence, find...
The two pependicular sides of a right-angled triangle have lengths x+2 and 5x-3. The hypotenuse has length 4x+1. Find x. (Please show working!)
in a graphing calculator
why is the statement true?
A charter bus company has determined that the cost, in dollars, of providing x people a tour is C(x) = 180 + 2.50x. A full tour consists of 64 people. The ticket price per person is $16 plus $0...
-x2-2x+15
quadratic functions