# write quadratic equation from formula

57,919 results

**Math**

Solve by using the quadratic formula. x^2=5x+2

**algebra II**

Solve using the quadratic formula: x^2 - 3x - 5 = 0

**Algebra II**

solve using quadratic formula p²+5p-5=0

**math/algebra**

solve x^2 + x - 12 = 0 quadratic formula??

**Algebra**

m^2-5m-14=0. Solve using quadratic formula. Thanks.

**Math**

9t^2-3t=0. Solve using quadratic formula

**Math**

4x^2-4 radical3x +3=0 Using quadratic formula

**URGENT math**

(x-1)(x+3)-6=0 Solve by quadratic formula.

**math help!!**

1/x+2 + 1/X+4 =1 Solve by using quadratic formula.

**Algebra**

Solve for "x" using the quadratic formula: X^2-4x-21=0

**algebra**

solve t^2 + 3 = 6t using quadratic formula

**geometry**

10^2=x•(x+3x) Use quadratic formula to solve

**Algebra help**

7x^2=8x Solve using the quadratic formula

**Algebra**

Solve by using the quadratic formula 7x^2-5x=0

**math**

solve by quadratic formula ;10x^-1/x=3

**maths**

Solve 2m^2+5m-20=0 using quadratic formula

**algebra**

algebra, write a quadratic equation in the variable x having the given numbers as solutions -ã10, 6ã10

**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 ...

**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 ...

**Maths**

The product of two consecutive positive numbers is 42 Find the numbers Please write this problem in quadratic equation form please

**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 ...

**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 =

**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 ...

**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 + ...

**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 ...

**Maths**

The product of two positive consecutive odd numbers is 255. What are the numbers? Please write this problem in quadratic equation form please

**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

**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 ...

**Chemistry**

Write a balanced chemical equation for the combustion of trioleylglycerol. The molecular formula is C57H110O6.

**AP Chemistry**

Write a balanced chemical equation for the combustion of trioleylglycerol. molecular formula C57H110O6

**Chem Hmwrk**

For the reaction HCl + AgNO3 → ,write the balanced formula equation

**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

**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.)

**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 ...

**Algebra**

Solve 3x^2+19x-14=0 using the quadratic formula

**pre calc**

use the quadratic formula to solve for x. x^2+2x+5-0

**Algebra**

Use the quadratic formula to find the roots of x^2-6x=3

**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

**math**

completing the square 2m^2-m-15=0 using the quadratic formula 2y^2-3y-6=0

**algebra 2**

How would you solve 3x^2+8x-91=0 and 9r^2+4r+2=0 using the quadratic formula?

**Math**

how do you use the quadratic formula on a TI-83 calculator? I'm in algebra 1!

**Algebra**

How to solve y = -0.04x^2 + 1.3x + 56 using the quadratic formula?

**Algebra 1**

Solve 2x^2 + 7x = -8 using the Quadratic Formula. A: No solution?

**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?

**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

**math**

Use quadratic formula (3x/x-1)+(2/x)=4 the solution set is ( , )

**algebra 2**

solve by using quadratic formula x^2+2x-35=0 i got x=10.85 or x=-12.85

**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?

**Math**

the age of the father is square of the age of his daughter . five years hence the fathers is three times as old as daughter .write the quadratic equation

**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

**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

**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)

**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?

**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 ...

**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 ...

**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 ...

**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 ...

**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 ...

**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 ...

**chemistry**

write a balanced formula equation for the reaction between sulfuric acid and calcium metal

**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 ...

**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

**college math 209**

use the quadratic formula to solve for x, 3x^2 + x -8=0

**11th grade-math**

help me Use the Quadratic Formula to solve N2=6n

**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.

**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?

**math**

48x^2-32x-35=0 quadratic formula is x=-b+/-b^2-4ac/2a please help

**math**

find the real solutions using the quadratic formula 6-(1/x)-(4/x^2)=0

**Math Help now !!!! Plz**

Solve using the quadratic formula X^2-4x=21

**algebra 2**

x^2 - 3x + 5 = 0. solve using quadratic formula. show solution

**Pre Calcu**

Use the quadratic formula to find the zeros of f F(x)=2x^2-4x-11

**algebra**

2x^=5-2x find the real solution using the quadratic formula

**math**

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

**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 ^____^

**Algebra 2**

How do I solve this using the Quadratic formula and finding the determinant? 1. 5x-6=0 2. x+25=0

**College Algebra**

Use quadratic formula to solve: 5x^2-10x+6=0

**Math**

Use the quadratic formula to find the roots Y= -.25x^2 + 5.5x- 5.25

**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 ...

**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 ...

**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??

**maths**

The following quadratic equation has the integer solutions x^2+5x-6=0 what is the positive solution of the equation

**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 ...

**Equation**

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

**Algebra1 HELP PLEASE**

The solutions to a quadratic equation are -1 and 7. What is the equation of its axis of symmetry?

**maths**

quadratic equation solve the equation by factorization 27x^2 - 126x = 0 So x=? or x=?

**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

**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

**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

**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.

**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: ...

**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...

**Chemistry**

Dilute H3PO4(aq) and NaOH(aq) are mixed in chemically equivalent quantities. Write the formula equation for the reaction

**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!!

**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

**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...

**quadratic equation**

what's the positive root of the following equation x(square)=7x+8

**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

**algebra**

how do you change the equation 0.2=x^2/55-x into a quadratic equation. I have 1/5(55-x)-x^2=0

**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 ...

**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 ...