137 Answered Questions for the topic Quadratic Word Problem

06/04/16

#### f(x) is a quadratic funtion in standard form where a=1, b=7, and c=-11. What is f(-4)?

I'm quite confused on this one. I know the formula for a quadratic function is ax^2+bx+c, right? This is a disaster! I have finals next week and I'm not understanding any of these review questions...

Quadratic Word Problem

05/29/16

#### Three times the square root of a number is equal to the the sum of the same number and 2 what is that number.

idk what to do with square root of x

Quadratic Word Problem

05/19/16

#### if m and n are the roots of the equation x^2+kx+20=0 and m^2+n^2=24, what is the possible value of k

if m and n are the roots of the equation x^2+kx+20=0 and m^2+n^2=24, what is the possible value of k

Quadratic Word Problem Extreme Point

05/08/16

#### a performer shot from a cannon by h(x)= -2x^2+8x+10 where h(x) is the height of the performer and x is the seconds passed since cannon extremum of the function?

what is the extremum of the function ? a. (-1,0) b. (0,10) c. (2,18) d. (5,0)

Quadratic Word Problem Average Rate Of Change

05/08/16

#### find the average rate of change of g(x)= -3x^2+12x-2 between x=1 and x=2

find the average rate of change in the equation between the given numbers

05/03/16

#### A toy rocket is launched from the top of a building 55 feet tall at an initial velocity of 242 feet per second.

A toy rocket is launched from the top of a building 55 feet tall at an initial velocity of 242 feet per second.
a) Give the function that describes the height of the rocket in terms of time t
b)...
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Quadratic Word Problem

04/24/16

#### The product of 2 concutive positive integers is 14 more than their sum. Set up an equation that can be used to find the 2 numbers and solve it.

The product of 2 concutive positive integers is 14 more than their sum. Set up an equation that can be used to find the 2 numbers and solve it.

Quadratic Word Problem

04/16/16

#### Quadratic Function Word problem

A t a Canada day celebration a firework is projected vertically in the air and reaches a maximum height of 120 metres. The path of the firework is parabolic and it lands 30 metres from the launch...
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04/07/16

#### I need help with applications involving quadratic equation word problems!!

stuart bikes 36 mi, averaging a certain speed. The return trip is made at an average speed that is 3mph slower. The total time for the round trip is 7hr. Find stuarts average speed on each part of...
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Quadratic Word Problem Quadratic Applications

03/31/16

#### When does Kerri enter the pool?

Use the equation h(t)=-3t2 -7t + 20

Quadratic Word Problem

03/27/16

#### a picture fame has an area of 180 square inches. find the length and width if the width is 3 inches less than the length.

how do you show work to solve the problem and get the correct answer

Quadratic Word Problem

03/17/16

#### Modeling Word Problem -- Quadratic Functions #57

a piece of cardboard is twice as long as it is wide. it is to be made into a box with an open top by cutting 2-in. squares from each corner and folding up the sides. let x represent the width (in...
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Quadratic Word Problem

03/17/16

#### Modeling Word Problem -- Quadratic Functions #55

One campus of Houston Community College has plans to construct a rectangular parking lot on land bordered on one side by a highway. There are 640 ft of fencing available to fence the other three...
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Quadratic Word Problem

03/17/16

#### Modeling Word Problem -- Quadratic Functions #53

A toy rocket (not internally powered) is launched straight up from the top of a building 50 ft tall at an initial velocity of 200 ft per sec.
a). give the function that describes the height of...
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Quadratic Word Problem

03/17/16

#### a companys profit is decrees by the equation p(x) =-5x^2+300x+15,000 where x is the price in dollars that the company charges for its product. what should the c

a companys profit is decrees by the equation p(x) =-5x^2+300x+15,000 where x is the price in dollars that the company charges for its product. what should the company charge for the product to...
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Quadratic Word Problem

03/17/16

#### A square has a side length of(3?? + 5). What is an expression in standard form that represents the area of the square minus the perimeter of the square?

A square has a side length of(3?? + 5). What is an expression in standard form that represents the area of the square minus the perimeter of the square?

Quadratic Word Problem

03/17/16

#### Jim plans to use 200 feet of fencing materials to enclose a rectangular dog pen. If he uses his house as the fourth side of the rectangular pen, what is the max

Jim plans to use 200 feet of fencing materials to enclose a rectangular dog pen. If he uses his house as the fourth side of the rectangular pen, what is the maximum area he can enclose?

Quadratic Word Problem

03/17/16

#### Quadratic Word Problems

A company’s profit is described by the equation where x is the price in dollars that the company charges for its product. What should the company charge for the product to generate the maximum...
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Quadratic Word Problem

03/14/16

#### Solving quadratic equation.

If 2 is one of the solution of the equation x2 —8x + k=0 , find k and the other solution.

03/05/16

#### Quadratic word problem?! PRECALCULUS PLEASE HELP!??

I have tried over and over again and I keep getting the wrong answer!The demand equation for a certain product is given by p=122−0.035x , where p is the unit price (in dollars) of the product and x...
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03/02/16

#### PRECALC HELP!!? Quadratic word problem!!Determining the width of a lawn?? I AM STUCK!

A factory is to be built on a lot measuring 300 ft by 400 ft. A local building code specifies that a lawn of uniform width and equal in area to the factory must surround the factory.What must the...
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Quadratic Word Problem Quadratic Equations

03/02/16

#### It's a quadratic word problem!

Here is the problem: The height of a triangle measures one foot more than twice its base. The area of the triangle is 18 sq ft. Find the measures of the base and height of the triangle. Use the...
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02/23/16

#### The TechStuffs company has determined that the function P(q)= -14+101.4x-3x^2 represents the profit

The TechStuffs company has determined that the function P(q)= −14+101.4x−3x^2 represents the profit from selling x thousand TouchTips touchpads. How many touchpads should be sold, in order to...
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02/23/16

#### A baseball player swings and connects with a pitch. The formula H=-16t^2+80t+4

A baseball player swings and connects with a pitch. The formula H=−16t^2+80t+4 can be used to determine the height of the ball (in feet) above the ground after t seconds. Determine the height of...
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