# write quadratic equation from formula

58,659 results, page 5

### Algebra

solve using the quadratic formula 2x^2 +6x-3=0

### math

Solve by using the quadratic formula x^2-4x-45=0

### Math

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

### Math

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

### algebra II

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

### math/algebra

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

### Algebra

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

### 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

### Algebra 1

how do I solve 5x^2+5x-60=0 using the quadratic formula?

### ALGEBRA 1

How do I solve "-2n-8n+42=0" using the quadratic formula?

### Algebra 2

Explain how you can tell what kind of conic section a quadratic equation describes without graphing the equation. Can you do this by writing the equation in standard form? (That's what my answer key says... but I don't know how/if it's actually right)

### algebra

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

### 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 ...

### 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 ...

### 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/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

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

(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 ...

### 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

### 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 ...

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 ...

### 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?

### 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

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

### Math

Find the roots using quadratic formula 1. X^2+7x =4 2. 4x^2 - 4x +1=0

### 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)

### 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 ...

### 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?

### 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 ...

### 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 ...

### 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 ...

### 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 ...

### 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

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

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

### math

Using the quadratic formula; I have to solve 8(a-squared)-a+2=0 a=8, b=-1, c=2

### 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

### Equation

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

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

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 ...

### 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...

### 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: ...

### math

solve the following by a quadratic equation and then solving it. a rocket is projected vertically upwards from ground level, its height "h" meters after "t" seconds is given by the formula h=35t-5t^2 how long does it take to reach 50 meters? you should have two answers, ...