693 Answered Questions for the topic Quadratic Equations

Quadratic Equations Math

12/07/17

find min or max value

f(x)=3-x-1/2x^2     g(x)=2x(x-3)+7
Quadratic Equations Polynomials Roots

11/30/17

Help find roots of a Polynomial Equation

I'm trying to solve this one polynomial equation: x3 - 2x2 + 10x + 136 = 0   I know the answer is apparently 3 +- 5i, -4 according to the answer guide but I'm unsure how to reach that... more
Quadratic Equations Math Algebra Quadratic Formula

11/29/17

Quadratic equations

The question is written like this:   The width of a rectangle is (x+2) cm. The perimeter of the rectangle is 6(x+1) cm. The area of the rectangle is 18 cm2. Show that 2x2+5x-16=0.   What is the... more
Quadratic Equations Algebra Equations

11/23/17

(2z+1)^1/2+(3z+4)^1/2 = 7, what is the value of z?

Choices:- A 1 B 2 C 3 D 4   Correct answer is 4. How?
Quadratic Equations Math Algebra Challenging Math Problems

11/23/17

What is the value of x in the equation (1+x)^(2/3)+(1-x)^(2/3) = 4(1-x^2)^(1/3)

Answer choices are where Correct choice is C.  (A) 5/(3)^(1/3)(B) -5/(3)^(1/3)(C) +- 5/3(3)^(1/2)(D) +- 15/(3)^1/3   When I substitute 5/3(3)^(1/2) or - 5/3(3)^(1/2) in (1+x)^(2/3)+(1-x)^(2/3)... more
Quadratic Equations

11/22/17

the area of a rectangle is 25 square feet. the length of the rectangle is 3.5 ft more than the width. find the dimensions of the rectangle.

 i made to the part where 5(2w2 +7w-30)=0
Quadratic Equations Algebra Word Problem College Algebra

11/21/17

Write an equation for the family of quadratic functions

Write an equation for the family of quadratic functions, in factored form, with the zeros 0 and negative 8.    
Quadratic Equations

11/19/17

How do you find a vertex h, knowing that k=0 and two other full points for a quadratic equation?

Given two full points and knowing that k=0, then h should have 2 values. One value will be between the two points when k=0 and the other will be extrapolated outside of the two points. I have the... more
Quadratic Equations Math

11/07/17

Use the zero product property to find the solutions to the equation x^2 + 12 = 7x.

Use the zero product property to find the solutions to the equation x squared plus twelve is equal to seven x 
Quadratic Equations

10/29/17

The product of some negative # and 10 less than 3 times that # is 8. Find the #

The negative number is?
Quadratic Equations

10/29/17

The length of a rectangle is 1in less than 3 times its width. If the diagnoal is 2in more than the length, find the dimentions of the rectangle

width and length of the rectangle in inches.
Quadratic Equations

10/29/17

An art studio has the shape of a right triangle. The two legs have lengths of x-2ft and x+5ft. The hypotunuse is 2x-27ft

The two lengths have lengths of x-2ft and x+5ft. The hypotenuse is 2x-27ft. Find the lengths of the three sides.   The length of the three sides of the base are how many feet?
Quadratic Equations Algebra College Algebra

10/29/17

Solving 2x^2 +9x +8 =0 by completing the square method produces an equation of the form (x+h)^2=k. Find h and k.

Solving  2x2+9x+8=0 by completing the square method produces an equation of the form (x+h)2=k. Find h and k.  I have  tried breaking it down but it seems I cannot find a proper formula or the... more
Quadratic Equations

10/28/17

The height of a triangular sail is 4 yards less than twice the length of the base. The area of the sail is 24 sq yards

Find the dimensions of the sail.
Quadratic Equations

10/27/17

33 by 22ft rectangle swimming pool. Total area of walkway is 300ft^2 how wide is the walkway?

Quadratic function. Swimming pool is surrounded by a walkway of uniform width.
Quadratic Equations

10/27/17

can quadratic equations have two imaginary solutions? Explain

this is a question that i need help. 
Quadratic Equations

10/27/17

Quadratics Jeans

  A manufactor of brand A jeans has a daily production costs of C = 0.3x2 _ 120x+12,575where C is the total cost ( in dollars) and x is the number of jeans produced. How many jeans should be... more
Quadratic Equations Algebra 1 Trinomials Algebra Help

10/21/17

Is x^2 + bx + ax + ab a quadratic trinomial?

Quadratic trinomials are obtained when binomial expressions are expanded. Consider the following: (x + a)(x + b) = x2 + bx + ax + ab   This means that quadratic trinomials of the form x2 + (a +... more
Quadratic Equations Quadratic Formula

10/20/17

A natural number when subtracted from 28, becomes equal to 160 times its reciprocal. Find the number.

i don't how to solve the question.can u please help me. i want the answer..  
Quadratic Equations

10/12/17

if 6 is added to 4 times a number the result is twice the square of the number

if 6 is added to 4 times a number the result is twice the square of the number
Quadratic Equations

10/11/17

s(t) = −4.9t2 + 9.8t + 171.5, where s is in meters. When does the object strike the ground?

An object is launched at 9.8 meters per second (m/s) from a 171.5-meter tall platform. The function that represents the object's height s at time t seconds after launch iss(t) = −4.9t2 + 9.8t +... more
Quadratic Equations

10/10/17

help me solve this please

An object is dropped from 27 feet below the tip of the pinnacle atop a 703 ft tall building. Have a height h on the object of 30 seconds is given by the equation H=-16t2+672. Find how many seconds... more
Quadratic Equations

10/10/17

translation of quadratic equation.

If the graph of a quadratic function y=3x2+2x+1 is translated two units horizontally and -3 units vertically, then we have the graph y=ax2+bx+c. Find the value of a+b+c.

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