141 Answered Questions for the topic Quadratics

Quadratics Optimization

06/16/17

Area optimization
A metal wire, 40 cm long, is cut in two and each piece bent to form a square. If the sum of their areas is 58 cm^2, who long is each piece of wire?
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Quadratics

05/16/17

a question on solving quadratics
answer must be 2-30
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Quadratics

05/01/17

Find the rule connecting A and x
A farmer has 60m of fencing with which to construct three sides of a rectangular yard connected to an existing fence. If the width of the yard is x m and the area inside the yard is A m2, write... more
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Quadratics

05/01/17

A rectangle has a perimeter of 20m. Let x m be the length of one side.
A rectangle has a perimeter of 20m. Let x m be the length of one side. Find a formula for the area A of the rectangle in terms of x. Hence find the maximum area of A
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04/15/17

h=80t-16t^2
h=height in feet t=time in seconds if h=96 feet, t=?
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Quadratics

03/15/17

4x2 + 28x = 0
4x2 + 28x = 0
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Quadratics

03/01/17

Application of Quadratics
A Sheet of cardboard 42cm long and 24cm wide has squares cut out of the corners so it can be folded to form an open box. Find the dimensions of the box if the volume of the box is 468cm^3. Using... more
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Quadratics

02/06/17

Two numbers have a difference of 20. When the squares of the numbers are added together, the result is a minimum. What is the larger of the two numbers?
I have no idea how to get to the answer, please help! Thank you.
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Quadratics

01/30/17

Create a quadratic model for the height of a ball thrown upward at 8m/s from a height of 1.2m
Grade 10 solving problems using quadratic equations. 
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Quadratics

12/07/16

nonlinear systems and growth (quadratic functions)
Here is a link to the picture of the problem. http://imgur.com/0ZiyAzP
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11/22/16

Find Dimension that yield greatest possible Area by completing the square for the rectangular region.
An athletic field with perimeter of 40km consists of a rectangle with a semicircle at each end. Find Dimensions that yield greatest possible Area by completing the square for the rectangular... more
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Quadratics

11/18/16

my question was too long so i put it in description
the base of a triangular sign exceeds the height by 8 inches. If the area of the sign is 24 square inches, find the length of the base and the height of the triangle.?
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Quadratics

11/15/16

College Algebra
A manager has determined that the revenue R(x) (in millions of dollars) made on the sale of supercomputers is given by R(x)= 48x - 3x^2, where x represents the number of supercomputers sold. How... more
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11/13/16

Roots of a polynomial
The number of integer x such that x2x-3(2x+2)+25 =0   Please help with this roots question
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Quadratics

10/13/16

Intersections with quadratic
Look at the two quadratic equations below. y=3x^2-x+7 y=x^2+4x+14 how many times will the graphs of these functions intersect? determine the points of the intersection
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10/12/16

Quadratic function (word problem)
henry jumps from a platform 10 meters above the surface of the water. the height of henry's jump can be modeled by the function h(t) = -5.3t^2 + 4.8t +10, where t is time in seconds after the jump.... more
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Quadratics

10/07/16

v(x)=-x^2+14x-57
maximum and minimum value , find that value   
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Quadratics

08/25/16

I need help URGENTLY!!
y= maximum vertical distance  h= maximum horizontal distance    y=-(x-h)2+47   Find the maximum vertical distance and maximum horizontal distance   I DO NOT UNDERSTAND HOW TO WORK IT OUT?... more
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Quadratics

05/23/16

F(x)=2(x-2)^2-2
Identity the vertex, y-intercept, zeros, axis of symmetry, and intervals of increase & decrease.
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03/29/16

quadratic ques
Roger mows half of a rectangular lawn that measures 40 m by 30 m by mowing strips of equal width around the perimeter. Cookie mows the small inner rectangle. how wide a strip should roger have so... more
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Quadratics Math Help

03/29/16

quadratic ques
write the standard form of the quadratic function that has been reflected on the x-axis and stretched vertically bye a factor of 2 and has a vertex at (5,8)
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Quadratics Math Help

03/29/16

quadratic ques
write the standard for, of a quadratic function that has roots at (3,0) and (-5,0) and has been stretched vertically by a factor of 4 
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03/29/16

Quadratic ques
the height h meters of an infield fly ball t seconds after being hit is modeled by the quadratic relation                                               H= -5(t+0.1)(t-3.5)   a) how long is the... more
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03/29/16

Quadratics
How to factor each trinomial a) x^2+x-20   b) 4x^2-32x+60   c)x^2-25   d) 7x^2 + 14x
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Quadratics

03/13/16

Find the lengh of a side of a square with an area of12 ft^2 Model the problem with a quadratic equation,let x be the length of a side of the square,Now find x
 what is the length of a side of a square with area of 12 ft^2. Model the problem with a quadratics equation with x as the length of a side of the square.
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