696 Answered Questions for the topic Quadratic Equations

Quadratic Equations

08/02/15

solve the equation. Express radical in simplest form
1.solve the equation. Express radical in simplest form (4z-1)^2=9/16    2. find the measures of angle whose supplement is 9times the measure of its compliment 
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Quadratic Equations

07/30/15

quadratic equations
The formula d=.054x^2+.058x describes the distance in feet D that it takes to stop a vehicletoraveling x miles per hour on dry pavement. how fast can you drive if you wish to be able to stop within... more
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Quadratic Equations

07/29/15

What is the impact of the value of a on the graph of a quadratic equation of the form of ax^2 + bx + c?
please explain thouroughly.
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Quadratic Equations Math Roots Product

07/28/15

Find k in the equation
Find k in the equation (k-3)x2 + (k-2)x - 5 so that: a) the sum of roots is 3. b) the product of roots is -4.
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Quadratic Equations

07/27/15

In a dolphin show, the height h in feet reached by a dolphin in t seconds after breaking the surface water is given by h=-4t^2 - 20.
In a dolphin show, the height h in feet reached by a dolphin t seconds after breaking the surface water is given by h=-4t^2 - 20t.Find how many seconds after breaking the surface water will the... more
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Quadratic Equations Problem Solving High School Maths

07/26/15

let pairs (a,c) and (b.d) be roots of the equations x^2+ax-b=0 and x^2 +cx+d=0respectively. find all possible real values for a,b,c,d
 please help me with this question you can get the answer by graphing but no use if no working out
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Quadratic Equations

07/24/15

The expression 3x2 – 6x – 105 can be used to model the height of a ball thrown in the air after x seconds.
Theexpression3x2–6x–105 can be used to model the height of a... more
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Quadratic Equations

07/13/15

quadratic formula
1/14=1/7x2-1/2x
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07/13/15

Graphing and Solving Systems of Linear and Quadratic Equations
In a European castle, a room with an arched ceiling is covered by a slanted roof. The ceiling is modeled by the equation:f(x)=-x^2 +4 and the roofline by the equation: f(x)=-2x +5. Assume that the... more
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Quadratic Equations

07/05/15

how about when (a) have a value like 4 in quadratic equation in factoring? how to solve it?
4x2+8x-9=0
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Quadratic Equations

06/30/15

The cost. C(x), of making x camera cases is a quadratic function in terms of x.
The company also discovered that it costs $28 to produce 2 camera cases, $50 to produce 4 camera cases, and $140 to produce 10 camera cases. Find the total cost of profucing 12 camera cases.
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Quadratic Equations Algebra 1 Word Problem

06/30/15

Write an equation of the area of a rectangle with a missing side.
The length of a rectangle is 9 less than twice its width and the area is 180. Write an equation and define the length and width.
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Quadratic Equations Algebra 2

06/29/15

find the length of a side of a square with an area of 169 m^2. model with a quadratic equation, then solve.
i need to find the sode length of the square
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Quadratic Equations Simplifying Expressions Math Help

06/28/15

Simplify an equation then show that it is...
a) simplify (x2-4x-12)(2x+3)2 / 2x2-9x-18 b) hence, show that [(x2-4x-12)(2x+3)2/ 2x2-9x-18] - 7x is always positive for any values of x, except x = -3/2 or 6.   My answers: For a) I got... more
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Quadratic Equations

06/26/15

Solve the given equation
Round all answers to two decimal places when necessary. Check your answer(s) graphically or with a table. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.)... more
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Quadratic Equations

06/26/15

solve the given equation
Solve the given equation using any of the methods you have learned. Round all answers to two decimal places when necessary. Check your answer(s) graphically or with a table. (Enter your answers as... more
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Quadratic Equations

06/26/15

help me figure this out please
The current through a particular wire can be modeled by I(t) = 2t2 − 6t + 7 where I(t) is the current in amperes after t seconds. (a) Find the current in the wire after 0.5 seconds. The current in... more
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Quadratic Equations Polynomial Functions

06/21/15

Polynomials
A Charter Flight charges a fare of $300 per person plus $6 per person for each unsold seat on a plane. If the plane holds 100 passengers and if X represents the number of unsold seats, find the... more
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Quadratic Equations

06/18/15

A clock has a minute hand that is 15cm long & an hour hand that is 9cm long. Coul ate the distance between them at 1:00
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Quadratic Equations

06/18/15

A football is kicked. It's height above ground is modelled by h=30t-6t^2, h= height in meters, t= time in seconds
What time does the football hit the ground? What is the maximum height it reaches and what time does it reach it? 
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Quadratic Equations

06/16/15

What are the zeros, axis of symmetry and vertex of each equation
A) y=3x^2+15x+18 b) y=-2x^2+4x+6
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Quadratic Equations

06/16/15

How to complete the square y=x^2+4x+1 . As well as find the vertex
I have to complete the square and determine the vertex. 
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Quadratic Equations Math Mathematics

06/15/15

How do you reduce the product of a quadratic formula
The question is Find all real solutions of the quadratic equation  2y2 − 12y + 11 = 0   After using the quadratic formula I got.   12 + - √ 144 - (4)*(2)*(11) ------------------------------  ... more
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Quadratic Equations Quadratic Applications

06/05/15

Quadratic Application
A car travels 780 mi at a certain speed. If the speed had been 5 mph faster, the trip would have been made in 1 hr less time. Find the speed.
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Quadratic Equations Word Problems

06/03/15

Applications with quadratic eqs
A student opens a book to two facing pages. The product of the pages is 812. Find the page numbers.
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