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December 9, 2016

Search: write quadratic equation from formula

Number of results: 56,411

Math
4x^2-4 radical3x +3=0 Using quadratic formula
December 4, 2011 by Jose

URGENT math
(x-1)(x+3)-6=0 Solve by quadratic formula.
March 27, 2012 by cla

math help!!
1/x+2 + 1/X+4 =1 Solve by using quadratic formula.
March 27, 2012 by 11th grade

Algebra
Solve for "x" using the quadratic formula: X^2-4x-21=0
April 26, 2012 by Jay

algebra
solve t^2 + 3 = 6t using quadratic formula
December 16, 2012 by Pearl

geometry
10^2=x•(x+3x) Use quadratic formula to solve
April 15, 2014 by ann

Algebra help
7x^2=8x Solve using the quadratic formula
September 16, 2014 by Anonymous

Algebra
Solve by using the quadratic formula 7x^2-5x=0
April 24, 2015 by Merty

math
solve by quadratic formula ;10x^-1/x=3
June 28, 2015 by simran

maths
Solve 2m^2+5m-20=0 using quadratic formula
September 7, 2016 by Prince

algebra
algebra, write a quadratic equation in the variable x having the given numbers as solutions -ã10, 6ã10
April 1, 2011 by Shirley

Physics - please, I really need help
a car attempts to stop and slides 25.5m while accelerating at -4m/s^2. The car's initial velocity was 20m/s. Find the time the slide took. Note that the final velocity is not known and that you need a quadratic solution. I know the quadratic formula, but I'm not sure how to ...
February 3, 2009 by Sam

Maths
The product of two consecutive positive numbers is 42 Find the numbers Please write this problem in quadratic equation form please
April 5, 2011 by Jannie

Algebra
Please help to find x, y 1. 8x-y=17 6x+y=11 2. 5x-2y=17 2x+3y=3 Question no.1 8x-y=17 6x+y=11 (adding the equation) __________ (-y and +y will be 0) 14x =28 Taking variables to one side x=28 __ 14 14*2=28 therefore x=2 substitute this value of x in equation 2 6x+y=11 6*2+y=11 ...
May 18, 2007 by Tamia

Math
Use the quadratic formula to solve the equation for x in terms of y and y in terms of x. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.) 2x^2 + 7xy + 1 − y^2 = 0 (a) x in terms of y x = (b) y in terms of x y =
September 14, 2014 by Liam

math/algebra
i know how to write/make explicit formulas but i have tried long and hard to find the formula for the sequence 2,7,15,26,40 i know that it increases by "3 more than the last increase" every time but i cant write a equation for it. it describes the number of total cards of a ...
November 20, 2008 by qwerty

math 213
The effect of depreciation can be computed using a formula similar to the formula for compound interest. a. Assume depreciation is the same each month. Write a problem involving depreciation and solve it. b. Develop a general formula for depreciation defining what each ...
April 19, 2010 by billy bob

Math
(1 & 2) The first three points do not fall on a straight line, and there is no value of k that will make that happen. (4) To find the quadratic y = a x^2 + bx + c that passes through the first three points, solve simultaneously 1 = c 3 = 4a + 2b + c 6 = 16 a + 4b + c 2 = 4a + ...
December 25, 2006 by drwls

Chem
The apparent equilibrium constant for the reaction A + B <==> 2C is Kc= 4.11 at 298.2 K. Given that the initial concentrations of A, B, and C are .10M, .10M, and zero, respectively, find the equilibrium concentrations of A, B, and C. I had this long, drawn out equation ...
April 16, 2007 by Chris

Maths
The product of two positive consecutive odd numbers is 255. What are the numbers? Please write this problem in quadratic equation form please
April 5, 2011 by Jane

Maths
The sum of the squares of three consecutive positive integers is 365 What are these integers? Please write this problem in quadratic equation form please
April 5, 2011 by Jane911

help!!!!!!!!!!
When factoring a trinomial, why is it necessary to write the trinomials in four terms?" You keep posting this without any thinking. Can this be factored in four terms? 10x^5 + 2x + 17 Perhaps you are meaning factoring the "quadratic" (a polynomial of degree 2) equation. Often ...
June 16, 2005 by jenn

Chemistry
Write a balanced chemical equation for the combustion of trioleylglycerol. The molecular formula is C57H110O6.
January 22, 2013 by Timofey

AP Chemistry
Write a balanced chemical equation for the combustion of trioleylglycerol. molecular formula C57H110O6
January 22, 2013 by Timofey

Chem Hmwrk
For the reaction HCl + AgNO3 → ,write the balanced formula equation
October 11, 2012 by Jena

Quadratic equations
I need to provide a quadratic equation that models the number of expected tickets sold each day x. (x=1 is the day tickets go one sale). tickets=-0.2x^2+12x+11
February 11, 2008 by Marysvoice

Math
Use the quadratic formula to solve the equation. x² - x = -2 Type an exact answer, using radicals as needed. Express complex numbers in terms of i. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.)
April 24, 2011 by Mary

math 117
Suppose you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to tour, and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office manager. The box ...
October 6, 2009 by Rmz

Algebra
Solve 3x^2+19x-14=0 using the quadratic formula
July 28, 2008 by Bernadine

pre calc
use the quadratic formula to solve for x. x^2+2x+5-0
October 29, 2009 by kate

Algebra
Use the quadratic formula to find the roots of x^2-6x=3
January 15, 2011 by Justine

Quadratic Formula
m2-5m-14=0 b2-4b+4=0 2m2+2m-12=0 8n2+7n-15=7 and the hardest! k2-31-2k=-6-3k2-k
January 10, 2012 by Marianna

math
completing the square 2m^2-m-15=0 using the quadratic formula 2y^2-3y-6=0
March 15, 2013 by carmen

algebra 2
How would you solve 3x^2+8x-91=0 and 9r^2+4r+2=0 using the quadratic formula?
September 23, 2013 by Krystal

Math
how do you use the quadratic formula on a TI-83 calculator? I'm in algebra 1!
March 19, 2014 by Anonymous

Algebra
How to solve y = -0.04x^2 + 1.3x + 56 using the quadratic formula?
March 23, 2014 by Anonymous

Algebra 1
Solve 2x^2 + 7x = -8 using the Quadratic Formula. A: No solution?
May 13, 2014 by Victoria

Algebra
Which of the following cannot be solved using the quadratic formula? A.-3x^2-x+3=-3x^2 B. 0=x^2 C. 0=2x^2-1 D. x^2+3x-2=4x^2-5x-1 Is it C?
July 22, 2014 by Emma

Algebra
Which of the following cannot be solved using the quadratic formula? A. x^2-x+3=0 B. x^2=9 C. 2x+3=0 D. -x^2=-x
July 22, 2014 by Emma

math
Use quadratic formula (3x/x-1)+(2/x)=4 the solution set is ( , )
August 23, 2014 by Anonymous.

algebra 2
solve by using quadratic formula x^2+2x-35=0 i got x=10.85 or x=-12.85
December 13, 2014 by Reina Bonilla

Chemistry (balancing eq)
I need to write a formula where PbNa reacts with water. 2PbNa + 2 H20 = 2 NaOh + H2 +Pb It says in the question that lead doesn't react with water, but Na does. Did I write the formula correctly?
October 1, 2013 by Kristine

Math 222
Posted by Tika on Monday, April 27, 2015 at 1:03pm. How do I write an quadratic equation whose roots are -1 and -2 and whose leading coefficient is 1. Sorry my equal key does not work blank equals 0
April 27, 2015 by Tika

algebra
The ball is kicked straight up in the air from 4' off the ground Original velocity is 60' per second How many secs does it take to hit the ground. Do I use complete the square, square root property, quadratic formula, factoring? formula is h= 16tsquared + 60t +4
May 22, 2013 by barb

Chemistry
WRITE THE BALANCED CHEMICAL EQUATION,WRITE THE OVERALL IONIC EQUATION,IDENTIFY THE SPECTOR IONS AND POSSIBLE PRECIPITATES,WRITE THE NET IONIC EQUATION FOR mercury(II)chloride(aq)+potassium sulfide(aq)
February 9, 2011 by Jasmine

Precalculus
Consider the equation 7sin^2x - (4sin2^x)/cosx = -1 a) Put the equation in standard quadratic trig equation form. Why is it 7sin^2x - 8sinx + 1 =0?
January 27, 2012 by Melissa

math
Q. Naomi has a formula that allows her to convert Clesius temperatures to Farenheit temperatures. She needs a formula for converting Fahrenheit temperatures to Celsius tempertures. What advice can you give her? I am thinking that I just reverse the preocess of the first ...
January 24, 2007 by catalina

math
one-half of a number is 8 less than two-thirds of the number. write algebraic equation: the sum of x and 8 is 15 write algebraic equation: 4 more than x is 9 write algebraic equation: 5 less than twice x is equal to 35 write algebraic equation: the product of 10 and x is the ...
May 14, 2013 by ji

Geometry
one-half of a number is 8 less than two-thirds of the number. write algebraic equation: the sum of x and 8 is 15 write algebraic equation: 4 more than x is 9 write algebraic equation: 5 less than twice x is equal to 35 write algebraic equation: the product of 10 and x is the ...
May 14, 2013 by ji

Algebra
Which is NOT true about the following table. X. 1, 2, 3, 4 Y 1, 4, 9, 16 A. It shows a linear function******** B. x increases by 1 each time C. The rate of change is not constant D. Y increases by a different value each time Write a quadratic function rule for the given table ...
February 16, 2015 by BUBBLES

Science/ Chemistry
When 0.422 g of phosphorus is burned, 0.967 g of a white oxide (a compound of phosphorus and oxygen) is obtained. a. Determine the empirical formula of the oxide. So for the empirical Formula I got P_2O_5 now it wants me to Write a balanced equation for the reaction of ...
September 22, 2013 by James

maths!
the formula h=15t-5t^2 gives the height 'h' metres of a ball, 't' seconds after it is thrown up into the air. (i) find the times when the height is 10m (ii) after how long does the bal hit the ground? ive figured out that the answer to (i) is t= 1 or 2 by using the quadratic ...
August 6, 2008 by jessica

chemistry
write a balanced formula equation for the reaction between sulfuric acid and calcium metal
May 13, 2008 by trista

TO: DrBob222 science
1. Write the chemical formula for each of the following acids: a.) hydrocyanic acid b.) oxalic acid c.) chlorous acid d.) nitric acid 2. Write the acid name or chemical formula for each of the following: a.) HBr b.) sulfurous acid c.) HClO4 D.) phosphoric acid 3. First ...
March 20, 2014 by Anonymous

Math
how do you solve for y in the expression: x^3=y(y+3)? x^3=y^2 + 3y y^2+3y- x^3=0 Using the quadratic formula.. y= (-3+-sqrt(9+4x^3) )/2
August 24, 2006 by Jamie

college math 209
use the quadratic formula to solve for x, 3x^2 + x -8=0
January 16, 2011 by Anonymous

11th grade-math
help me Use the Quadratic Formula to solve N2=6n
May 24, 2011 by kayla

math-calculus
x-1/x+1 = 2x/15 (15)(x-1) = (2x)(x+1) 2x^2-15x+17 do i put this in quadratic formula? i so confused.
January 7, 2012 by Shreya

math-calculus
30/x^2-25 = 3/x-5-2/x+5 i be left with 30 = 3x^2-75-2x^2+50 i not sure what to do? i use the quadratic formula?
January 7, 2012 by Shreya

math
48x^2-32x-35=0 quadratic formula is x=-b+/-b^2-4ac/2a please help
October 26, 2012 by danica

math
find the real solutions using the quadratic formula 6-(1/x)-(4/x^2)=0
December 2, 2012 by brad

Math Help now !!!! Plz
Solve using the quadratic formula X^2-4x=21
December 12, 2012 by David

algebra 2
x^2 - 3x + 5 = 0. solve using quadratic formula. show solution
January 15, 2014 by em

Pre Calcu
Use the quadratic formula to find the zeros of f F(x)=2x^2-4x-11
January 26, 2014 by Anonymous

algebra
2x^=5-2x find the real solution using the quadratic formula
September 5, 2014 by sue

math
What will be the answer of 4x(x-1)+5=0 when i'll use quadratic formula to solve it. Thank you ! ^___^
September 11, 2014 by ghenny

math
Please solve these using the quadratic formula: 1. 3x^2-4(x-2)=0 2.a^2+2(a++5)=0 3.x^2-3(2x+3)=0 Thank you ^____^
September 11, 2014 by ghenny

Algebra 2
How do I solve this using the Quadratic formula and finding the determinant? 1. 5x-6=0 2. x+25=0
November 12, 2014 by Jessica

College Algebra
Use quadratic formula to solve: 5x^2-10x+6=0
September 29, 2015 by Tim

ALGEBRA
how do i solve this linear equation: 3x/4 + 6 = -12 (3x over 4 is a fraction) and this quadratic equation..... -4x squared = 0??
September 10, 2009 by ggift

maths
The following quadratic equation has the integer solutions x^2+5x-6=0 what is the positive solution of the equation
March 29, 2011 by elizabeth

Chemistry
Water is added to 4.267 grams of UF6. The only products are 3.730 grams of a solid containing only uranium, oxygen and fluorine and 0.970 gram of gas. The gas is 95.0% flourine, and the remainder is hydrogen. From data determine the empirical formula of the gas. What fraction ...
January 9, 2011 by deanna

chemistry
Water is added to 4.267 grams of UF6. The only products are 3.730 grams of a solid containing only uranium, oxygen and fluorine and 0.970 gram of gas. The gas is 95.0% flourine, and the remainder is hydrogen. From data determine the empirical formula of the gas. What fraction...
January 9, 2011 by Deanne

Equation
-4x (little 2) =0 Not sure what name the technique means. I know this is a Quadratic Equation.
June 19, 2010 by Lisa

Algebra1 HELP PLEASE
The solutions to a quadratic equation are -1 and 7. What is the equation of its axis of symmetry?
July 3, 2013 by lisa

maths
quadratic equation solve the equation by factorization 27x^2 - 126x = 0 So x=? or x=?
August 1, 2013 by gean

Algebra
The following equation is quadratic. f(x)=(x-7)(3x-2) What are the x-intercepts of the graph of the related equation y=(x-7)(3x+2)? A) -7 and 2/3 B) -7 and 3/2 C) -3/2 and 7 D) -2/3 and 7
April 30, 2015 by Ashley

Algebra
Please show me how to solve this problem. 8/x^2-16 + 3/4 = 1/x-4 multiply each of the terms by x^2, collect your like terms and bring them all to the left side. You will have a quadratic equation. BTW, since you did not use brackets I will assume your last term is (1/x)-4 and ...
May 8, 2007 by Marie

Algebra help
Match the equation 4x^6-2x^3+1=0. With a substitution from the column that could be used to reduced the equation to quadratic form: a) u=x^-1/3 b) u=x^1/3 c) u=x^-2 d) u=x^2 e) u=x^-2/3 f) u=x^3 g) u=x^2/3 h) u= x^4
March 24, 2011 by Miguel

Algebra help
Match the equation 4x^6-2x^3+1=0. With a substitution from the column that could be used to reduced the equation to quadratic form: a) u=x^-1/3 b) u=x^1/3 c) u=x^-2 d) u=x^2 e) u=x^-2/3 f) u=x^3 g) u=x^2/3 h) u= x^4
March 24, 2011 by Miguel

Math
1)If the roots of a quadratic equation are -2 and 3, the equation can be written as A) (x+2)(x+3) B) (x-2)(x+3)** C) (x+2)(x-2) D) (x-2)(x-3) Is the answer B? If someone could help me that would be great.
April 29, 2015 by Alan

math,help,algebra I
I need help can someone help me get unstuck and let me know if i am correct.thank you. solve by completing the square. 4x^2+2x-3=0 this is what i am doing: i used the quadratic equation. so where i am is in this step: x = (-2 (+-) sqrt (-44))/(8) from this point i am stuck: ...
April 14, 2007 by jasmine20

algebra II
Can you please help me with the these problems. 8.Write an equation in standard form of the parabola that has the same shape as the graph of f(x) = 11x^2, but which has its vertex at (2, 9). 10. Use the vertex and intercepts to sketch the graph of the quadratic function. y + 3...
October 13, 2007 by Ashley

Chemistry
Dilute H3PO4(aq) and NaOH(aq) are mixed in chemically equivalent quantities. Write the formula equation for the reaction
April 30, 2011 by Donna

algebra2
If the discriminant of a quadratic equation is equal to zero, how many real solutions does the equation have? A. 0 B. 1 C. 2 D. 3 please help!!
June 25, 2012 by laltk

algebra1please look over THANK YOU
The solutions to a quadratic equation are -1 and 7. What is the equation of its axis of symmetry? I GOT 3 is that right
July 3, 2013 by lisa

quadratic equation
what's the positive root of the following equation x(square)=7x+8
February 8, 2012 by tanya

quadriatic equation
solve and check each of the following quadratic equation (1)x^+x-6=0 (2)x^+8x+15=0 (3)x^+2x+1=0 (4)x^-3x-4=0 (5)x^-4x-32=0
February 15, 2012 by tanya

math
is these answers correct? solve the equation: 2x^2 +8x - 17=(x +2)^2= x=-7,3 solve (v-5)^2-63=0, where v is a real number, simplify answer as much as possible. v=3 square root 7+5,-3 square root7+5 v``12.93725, -2.937254 use the quadratic formula to solve for x. 4x^2x-4=0 =x=1...
October 31, 2010 by lee

algebra
Hi Dear Jiskha team, I have Algebra homework and I will need some help. The homework is following: Suppose you are using a computer to draw a face on a coordinate plane. The eyes are at (–3, 3) and (3, 3). The tip of the nose is at the origin. To make a smiling mouth, you ...
February 22, 2012 by Lily

SAT math
1. x>15-2x / -3 Solve the linear inequality. Write the solution in set builder notation. So, -3x>15-2x, x<-15..? And how do I write it in set builder notation? 2. y+x=9 and 3y=2x + 8. How do I solve this system of equations? 3. Find the maximum y- value of the ...
June 1, 2013 by mysterychicken

maths
1a) Solve the each of these equations by factorising the left hand side into a product of linear factors: (i) x^2 - 6x - 40 = 0 (ii) 3x^2 + 20x - 7 = 0 (b) For each question in part (a), check your solutions by substituting them back into the equation. 3. Solve each equation ...
October 24, 2016 by Saphina AlMatary

maths
1a) Solve the each of these equations by factorising the left hand side into a product of linear factors: (i) x^2 - 6x - 40 = 0 (ii) 3x^2 + 20x - 7 = 0 (b) For each question in part (a), check your solutions by substituting them back into the equation. 3. Solve each equation ...
October 24, 2016 by Michael

maths
1a) Solve the each of these equations by factorising the left hand side into a product of linear factors: (i) x^2 - 6x - 40 = 0 (ii) 3x^2 + 20x - 7 = 0 (b) For each question in part (a), check your solutions by substituting them back into the equation. 3. Solve each equation ...
October 25, 2016 by Michael

PHYSICS
A DAREDEVIL JUMPS A CANYON 12 METERS WIDE. TO DO SO HE DRIVES A CAR UP A 15 DEGREE INCLINE. a. WHAT IS THE MINIMUM SPEED HE MUST ACHIEVE IN ORDER TO CLEAR THE CANYON? B. IF THE DAREDEVIL JUMPS AT THIS MINIMUM SPEED WHAT WILL HIS SPEED BE WHRN HE REACHES THE OTHER SIDE? Write ...
November 1, 2006 by Jill Hefner

Chem
Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 1.90 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL NaOH: 1.90 pH w/HCl...
May 7, 2012 by Jenna

college
Solve; 5X2 - 8 X + 3 = 0 using the quadratic formula the 2 is to the second power a. X = 1 and X = 3/5 b. X = -1 and X = 1/5 c. X = 1 and X = - 2/5 d. X = 3 and X = - 1/3
April 16, 2009 by deirra

math
Solve; 5X2 - 8 X + 3 = 0 using the quadratic formula . the 2 is second power
April 16, 2009 by Minnie

math
how to find the values of x?? x^2 - 3x - 7 = 0 tried quadratic formula and completing the square what else can i do??
October 21, 2010 by john

pre cal
using formula v=-b/2a, 4ac-b^2/4a graph the quadratic function f(x)=x^2-6x+5
February 3, 2011 by heather

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