330 Answered Questions for the topic Quadratic Formula

Quadratic Formula

10/18/18

we are using the quadratic formula in class. Im just a bit confused how to apply it to word problems.

a firework is launched upward at an initial velocity of 116 feet per second from a cliff 300 feet above a beach. What is the height of the firework after 2 seconds? At what time(s) is the object... more
Quadratic Formula

09/29/18

What will the width of the mat be?

Jay has a photo that measures 10 cm by 15 cm. He wants to fix it to a mat, so that there is a border of uniform width around the photo. The mat and photo will have an area of 500 cm2. What should... more
Quadratic Formula Math Quadratic Equations

09/26/18

Math help with quadratic word problems

A rancher uses 200m of fencing to enclose two adjacent rectangular corrals, forming one large corral with a fence in the interior. Determine the dimensions that enclose a total area of 1400m
Quadratic Formula

07/24/18

Solving volume with quadratic formulas

the length of the rectangular piece of sheet metal is 3 in longer its width a square piece that measures 1 in on each side is cut from each corner then the sides are turned up to make a box with... more
Quadratic Formula Math Help

07/11/18

Is this a quadratic formula?

Is y=x^2 + 3x a quadratic formula? What are the qualities of a quadratic formula?
Quadratic Formula

05/31/18

A rocket is shot off on a projectile of h=−16t2+101t+15 where h is the height of the rocket after t seconds. At what time will the rocket hit the ground?

Solve using the quadratic formula, Round to the nearest tenth
Quadratic Formula

05/01/18

Solve with quadratic formula

the length of a rectangle exceeded twice its width by 3 inches. If the area is 10 square inches,.find the rectangle's dimensions. Round to the nearest tenth of an inch.

Problems leading to quadratic equations

The height of a right-angled triangle is 3 cm more than the width. The area is 10 cm2. Find the width of the triangle.
Quadratic Formula Quadratic Equations

03/28/18

x^2 = 11 - 4x , How do you answer this is in the quadratic formula?

Need Help!!
Quadratic Formula Quadratic Equations

03/28/18

2n^2 + 14 = 11n , How do you answer this in the quadratic formula?

Need Help!!
Quadratic Formula Algebra 1 Algebra Word Problem

03/21/18

An office supply store sells about 8 graphing calculators per month for $120 each. (cont. in description)

For each $6 decrease in price, the store expects to sell eight more calculators.The revenue from calculator sales is given by the function R(n) = (unit price)(units sold), or R(n) = (120 - 6n)(80 +... more
Quadratic Formula Algebra 2 Algebra Equations

01/22/18

Solve with quadratic formula..7x^2 - 10x - 1 = 0?

7x2 - 10x - 1 = 0
Quadratic Formula Algebra 2 Algebra Equations

01/17/18

x^2 - 2x + 9 = 0...find the discriminant & determine types of solutions?

x2 - 2x + 9 = 0   A.)Find discriminant & determine types of solutions B.)Solve with with quadratic formula
Quadratic Formula Algebra 1 Algebra 2 Algebra

12/15/17

Solving equations with quadratic formula? 8n^2 + 4n - 16 = -n^2

8n2 + 4n - 16 = -n2
Quadratic Formula

12/10/17

solve using quadratic formula

A stone is thrown upward at a velocity of 32 ft./s from a mountain 240 feet high when will the stone hit the ground

Why is this required for finding zeros in Polynomials

I believe this question is very simple, I just would like to know why in this specific example (2x3+2x2-19x+20=0) once I am done plugging in the trinomial into the quadratic formula and get 6 +- 2i... more
Quadratic Formula Math Algebra Quadratic Equations

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 Formula Quadratic Equations

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..  

10/11/17

Find all real roots of the given polynomials, using the quadratic formula if necessary. Then write the polynomial in factored form.

a) f(x) = x3 − 5x2 + 2x + 12   b) g(x) = 4x3 − 6x2 + 1
Quadratic Formula

08/27/17

the area of a rectangle is 20 cm^2. The lenght is 8 more than the width. Find the width in cm.

Solve using Quadratic equation 
Quadratic Formula Math Parabolas Graphing

07/24/17

How do find the equation of the parabola given the vertex, and both x intercepts?

I am trying to find a equation that would graph a parabola given the vertex and both x intercepts. Can you please help? Thanks.
Quadratic Formula

07/20/17

I am trying to solve a math problem, but Im stuck!

 I know I have to use the quadratic formula, but not sure how to get started.  x=x0+v0t+(1/2)at^2, solve for t
Quadratic Formula

07/19/17

solve using quadratic formula

3x^2-10x-3=0

07/18/17

NEED HELP WITH SIMPLE ALGEBRA 1 PROBLEM!

The square of a number (x^2), decreased by 6, is equal to 18 decreased by 5 times the number.   The numbers are _______ and _________.

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