1. Solve the equation below for x interms of a 4(ax+3)3ax=25+3a 2. The formula for the sum of the degree measures of the interior angles of a polygon is S=180(n2). Solve for n, the number of sides of the polygon,
63,824 results
math
Use the quadratic formula to solve the equation x^2 + 7x = 8

Algebra
1. Solve the equation below for x interms of a 4(ax+3)3ax=25+3a 2. The formula for the sum of the degree measures of the interior angles of a polygon is S=180(n2). Solve for n, the number of sides of the polygon, in terms of S. IM STRUGGLING PLEASE HELP

algebra
Use the quadratic formula to solve the equation. x^27x6=0

math
What is the first step in solving the linear system {2x − 3y = 11 {−x + 5y = −9 by the substitution method in the most efficient way? A. Solve the first equation for x. B. Solve the first equation for y. C. Solve the second equation for x. D. Solve

Math
1. Solve the equation. 6g = 42 a. g = 7 b. g = 7 c. g = 252 d. g = 252 2. Solve the equation. x/8 = 16 a. x = 128 b. x = 24 c. x = 8 d. x = 2 3. Solve the equation. 12m = 14.4 a. m = 120 b. m = 12 c. m = 1.2 d. m = 0.12 4. Solve the equation. x/3 = 15

Algebra
What method(s) would you choose to solve the equation? Explain your reasoning. 4x^248=0 a. Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large. Selected:b. Square roots; there is no xterm. c. Factoring; the

math
What is the first step in solving the linear system {2x−3y=11 {−x+5y=−9 by the substitution method in the most efficient way? A. Solve the first equation for x. B. Solve the first equation for y. C. Solve the second equation for x. D. Solve the

algebra
Solve the equation using the zeroproduct property. 9n(5n5) a. 1/9, 1 b. 0,1***** c. 1/9,1 d. 0,1 Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^26=x a. x=2,3 b. x=2,3 ***** c. x=2,3 d. x=2,3 How

algebra 1
Use the Quadratic Formula to solve the equation: 5x^2 + 9x  2=0 2,1/5?

Math
Using the quadratic formula to solve for x in the equation x2 = 7x + 8 results in what value(s)?

math
The equation d =70t represents the distance in miles covered after traveling at 70 miles per hour for t hours.....what is d when t = 2.5? ...what is t when d =210? please help im desperate here...iv been studying all day help me my brain hurts!!!!!!!!!!!

Algebra 2
When 4x^3  3ax + 5 is subtracted from 11x^3 + ax^2  x + b, the result is cx^3  2x^2 + dx  1. How do you find a, b, c, and d?

algebra
use the quadratic formula to solve the equation 4x^27x2=0

Chemistry
How much heat is given off when 24.0 g of methane is burned in air? The equation for the reaction is: CH4 + 2O2 => CO2 + 2H2O + 890 kJ What equation or formula should I use to solve this? Thanks!

Calculus
I apologize if this question is too much to ask on this site, but I am really confused. Any help would be greatly appreciated. The famous formula shown below is called Euler’s formula, after the Swiss mathematician Leonhard Euler (17071783). e^(a + bi)

algebra
use substitution to solve the linear system 3x+2y=5 4x3y=16 help plz!!! Solve for y in one formula, and then substitute that value for y in the other formula to solve for x. Once you find x, substitute that value into either formula to get the value for

Math
When f(x)= 3ax^3 + 2ax^2  7x + 3 is divided by 2x+1 the remainder is a/2 . Determine the value or values of a.

Math
Solve the system by addition or substitution. 3x – 4y = 8 6x – 2y = 10 Please get me on the correct track for 3x 4y =8 x=4, y=1 for 6x  2y =10 x= 2, y= 1 Solve one equation for x. 3x = 4y + 8 x = (4y + 8)/3 Insert that value for x in the other

Algebra
Solve the quadratic equation. 3x^215x+18=0 I know that the formula to quadratic equation is x=b+and(square root)b^24ac divided by 2a. I know that a=3, b=15 and c=18, then subsitute in and get two answers, my problem is that I keep getting an answer

Algebra
Use the Quadratic formula to solve the equation 4x^23x+2=0

chemistry
For these problem, I know how to solve it, but I have some issues with the formula. I know that, I need to write down the formula first, and then I need to balance the equation, then I can solve it. So, can anyone please check my formula? You don't have to

Algebra II
1)What method(s) would you choose to solve the equation: x2 + 2x  6 = 0 A. Square roots; there is no xterm. B. Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large. C. Factoring; the equation is easily factored.

math
(A)Write the equation in standard form and calculate its discriminant. (B)Solve the equation by using the quadratic formula. (C)After solving the equation, write it in factored form. 1/8x^2=x5/2 Please help!!!!! :(

algebra
Solve equation using quadratic formula x^2+4x+3=0 is answer 3,1 ?

PreAlgebra
Please help to solve to find x,y 1. y=7x3 2. 4x+2y=8 Take the value of y in the first formula and substitute it for y in the second formula. Solve the second formula for x. Once x is found, solve for y in the second formula. Check by inserting both values

College Algebra
Use the quadratic formula to solve the equation: 2x^2=5x7

Algebra 2
Solve each equation using the Quadratic Formula. 3x^2+5x=2

Algebra
I need help with using the quadratic formula to solve this equation: 2^x22x = 8

Algebra
I was given this answers to a problems I solved but I do not understand what she means hope you can help. Before attempting to solve this quadratic equation, determine how many solutions there will be for this quadratic equation. Explain your reasoning.

Algebra
I have a few questions that I need help with. Solve the radical equation, and check all proposed solutions. 5. x square root 3x2=4 I don't understand this problem. Solve and check the equation. 10. (x^2+14x+49)^3/420=7 would I have to multiply each

algebra
use substitution to solve the linear system 3xy=15 x+2y=2 Solve for y in one formula, and then substitute that value for y in the other formula to solve for x. Once you find x, substitute that value into either formula to get the value for y. 2y = 2  x

Calc
how do I solve this arcsin(4/5) note that I am not looking for about 53 degrees I believe I'm suppose to solve euler's formula for x i.e. sin (x) = (e^(ix)  e^(ix))/(2i) where x is in radians hence I would do something like this sin (x) = (e^(ix) 

Mathématics
If vectors a and b is respectively 3x+y and x2y, find x and y interms of a and b

math
1. 4x^213x=12 I need to solve this problem by factoring or using the quadtratic formula. I am stuck when using the quadtratic formula method. Please advise how to do this. 2. 5x^2+42=0 How many roots exist in this equation and what type are they?

Algebra
PLEASE HELP! 1. Part 1: Using the digits 4 and 10, and the variable x, write an equation and solve. Part 2: Using the digits 4 and 10, and the variable x, write an expression and simplify if neccessary. 2.Equation: 10 + 4 = x 14=x Expression: 10(4 + x)

math
Use quadratic formula to solve each equation 3k^2+6=6 I get 3/2 but I can't seem to get the other half of the equation such as x=3.7 or .26 etc...

Math
x^3 + 1.85x^2  x +0.15 = 0 how can you solve for x? An exact solution or a numerical solution? Exact solutions can be obtained as follows: x^3  1.85x^2 + x  0.15 = 0 First get rid of the quadratic term by substituting: x = (y + 1.85/3) You then obtain

Economics
What is utility interms of grafic and mathematical expresion

Geometry
What formula should be used to derive the equation of a parabola given its focus and directrix? • The distance formula ?? • The midpoint formula • y = ax2 + bx + c • The area formula for a circle

algebra
Use the quadratic formula to solve the equation x^25x=10

Algebra 2
Solve each equation using the Quadratic Formula. x^2+16=8x

Math
Solve 1/8^23x=2y+2 find x using equation formula

Anyone want to help me?
Solve the equation or formula for the indicated variable. s=6r^5t for t

algebra
Solve equation by using the quadratic formula 3x22x5=0

math
solve for x in terms of a and b 4(ax3)3bx=25+3ax

Algebra
Please help to find x, y 1. 8xy=17 6x+y=11 2. 5x2y=17 2x+3y=3 Question no.1 8xy=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

Maths
Solve: 5ax+6by=28 , 3ax+4by=18 using cross multiplication method

algebra
how would i work out the following problems solve each formula in terms of the given variable 1. 5d2g=9 ;g The formula A=2h(l+w) gives the lateral area a of a rectangular solids with length l, width,w and height h. 2. solve this formula for h 3. solve

Algebra 1
What is an equation of a line perpendicular to the line with equation y = 1  3x a.y=3x + 5 b. y=3x + 5 c.y=1/3x + 5 d. y=1/3x + 5 To solve the linear system below, which substitution of unkowns is proper ? x + 4y= 6 5x  3y = 16 a. substitute 4y6

Math
Use the quadratic formula to solve each of the following quadratic equations... 1. 2x^25x=3 2. 3x^22x+1=0 Rearrange the equation in quadratic formula form. 2x^2 5x 3 = 0 Then use the formula. Tell me what you don't understand about it if you don't know

Algebra
I was given this answers to a problems I solved but I do not understand what she means hope you can help. Before attempting to solve this quadratic equation, determine how many solutions there will be for this quadratic equation. Explain your reasoning.

Math Help Please!
My investment in Edgewater stocks is losing half its value every 2 years. Find and interpret the associated decay rate. If I use the formula y=100(1/2)^x (

math
First try to solve the equation by factoring. If you are unable to solve the equation by factoring, solve the equation by using the quadratic formula. For equations with solutions that are irrational numbers, give exact solutions and approximate solutions

Trig
h t t p : / / m a t h c e n t r a l . u r e g i n a . c a / Q Q / d a t a b a s e / Q Q . 0 9 . 9 9 / a n g e l a 2 . 2 . g i f give that picture how do I solve for (h) I know that you you From the diagram tan(3.5) = h/(13 + x) and tan(9) = h/x. Solve the

Algebra
I have two problems that I am not sure about how to work out. 1. The distance traveled by a falling object is given by the formula d=4.9t^2, where d is in meters and t is in seconds. Solve the formula for t. 2.The volume of a right circular cone is given

ALGEBRA
I have two problems that I am not sure about how to work out. 1. The distance traveled by a falling object is given by the formula d=4.9t^2, where d is in meters and t is in seconds. Solve the formula for t. 2.The volume of a right circular cone is given

ALGEBRA 1!PLZ HELP!
Use the Substitution method to solve the system of equations. y  2x = 5 3y  x = 5 Solve the first equation for y. y = 2x5 Substitute that for y in the second equation and solve for x. Then use the value of x to substitute back into the first equation

math
use the quadratic formula to solve this equation. 4x^28x+3=5 use the formula x=b + or  the sqrt of b^24ac/2a yes, the 2a divides into all. Memorize it.

Algebra
Solve by using the quadratic formula. 3x^2=11x+4. Look up the formula if you don't know it already. In this case a = 3, b = 11 and c = 4. You get that by rewriting the equation in the standard form ax^2 + bx + c = 0 , where a, b, and c are constants.

Algebra
I'm having trouble with these problems, I'm not asking for just the answers, I need to know how to solve them, its a practice for my upcoming final, So I need to know how to do them. Name the property of real numbers illustrated. (2√7)*√3=2(√7*√3)

Math
1/4 x>8 1/4 x>8 x2≤8 1≤ ((2+3x)/2)

Algebra
I have some problems that I am having trouble with and I have some that need checking please. Thanks! Solve the equation. 4. (x+7/4)=2(x1/6) Find all the value(s) of x that make thedenominator(s) zero. Then solve the equation. 6. (x8/2x) +5= (x+6/x)

algebra II
I'm quite clueless as to how to solve this. I know the quadratic equation but am not sure how to get this equation into the format to plug in to the quadratic... Solve the quadratic equation using the formula [1/(1+x)][1/(3x)]=(6/35) Show your work

Algebra
Find two consecutive positive integers such that the sum of the square is 85..(show your work) If X is the first integer, then X+1 is the next; therefore, the sum of those squares will be 85. X^2 + (X+1)^2 = 85 Solve for X, then add 1 to it for the second

MATH
I NEED TO SOLVE FOR Y AND X im getting rele confused on this. ok here is the prob. x+y=5 x2y=4 equation 1 x+y=5 equation 2 x2y=4 Multiply equation 1 by 1. Add equation 1 to equation 2. The x term cancels. Solve for y. THEN, put the value of y into

Algebra 1 (StepbyStep)
Will someone explain how to solve this? Write each equation in standard form. Solve by using the Quadratic Formula. 1. 7 = x^2

help!
Can you please give me one of them so I cansolve for the other one?PLease! The general formula for a straight line is y = mx + b. Just plug the points into the equation to arrive at two equations. 6=2m+b 10=4m+b you have two equations and two unknowns.

Maths
If x^3+3ax^2+bx+c is a perfect cube .prove that b^3=27c^2

calculus
for f(x)=5/8, a. find an equation for the secant line through points where x=4 and x=5.b. find an equation for the line tangent to the curve when x=4. I can solve part a., but I am confused on part b. please help. I don't understand how to plug the numbers

Pre Algebra
Please help me with some problems. Thank you! Solve the equation by square root property. 3. 2x^2 = 26 I don't understand how to solve this problem. Solve the equation using the quadratic formula. 7. 7x^2=8x 2 This is what I got x= 8 or+ square root

algebra
The area of the wall you are going to paint is 50 feet2. If the width is half the height, what are the dimensions of the wall? In answering this problem follow the steps below: 1. Represent the height as ‘x’ and then write the width in terms of x (for

Mathematics
Given that p=2q and 2r=3q. Express 2pr2 interms of p only

Math
The surface area of a soft drink with cylindrical shape is given by a formula SA=2×pi×r(r+h), where r cm is radius of can and h cm is the height. The height of a can of wood finish is 5 cm and its surface area is 250cm^2 Substitute values into formula to

Chemistry
For the equation give the formula equation, ionic equation, and the net ionic equation after predicting the products and balancing. Using the solubility rules to indicate solid or aqueous each formula. AgNO3 + NaCl

Math
Could someone help me with this equation? Use the quadratic formula to solve the equation... 2x^2  x = 10

algebra
I just need a quick check before I hand in my work if you would...Thanks. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and 6 for x I got these as my ordered pairs to graph (3, 1), (6, 4)…Is this correct?

Geometry / Algebra 1
(a) The surface area of the prism shown is 314 square meters. Write an equation that u can solve to find the value of w. side a=wm b=8m and c=(w+4)m (on the picture) I'm guessing u use the formula surface area=2ab+2bc+2ac??? Well if so I need all that

chemistry
write the balanced formula equation and the net ionic equation for the reaction of sodium hydroxide with hydrochloric acid. Formula equation.............. net equation.............

math
(4.35E2  x)(7.56E2 x ) ============================ (0.324 + 2x)2 Rearrange to get an expression of the form ax2 + bx + c = 0 and use the quadratic formula (solve for x. This gives: x = 1.05E2, 0.143 basically i understand they use the quadratic

trig
solve each equation for è, giving a general formula for all of the solutions: 6. tanè=1 7. sin(è/2)=1/2 Please show step by step on how to solve these. Im not sure on how to do them. Thank you for your help!

math
is these answers correct? solve the equation: 2x^2 +8x  17=(x +2)^2= x=7,3 solve (v5)^263=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

math
15t^2+7t=2 The quadratic formula tells you that the solutions are: t = [b +/sqrt (b^2  4ac]/ (2a) In this case, a = 15, b = 7 and c = 2 solve the equation for t. What values for t will you get when you substitute the values you listed for a, b, and c

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.

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.

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.

Algebra 2
Solve each equation using the Quadratic Formula. 2x^2+3=7x

Semester 2Algebra 1Unit 3Sample Work
Use the quadratic formula to solve the equation x^26x2=0

algebra
use the quadratic formula to solve the equation 2x^23x=6

MATH
solve for the equation or formula for the specified variable x+ya=b,for y over Z

algr.2
solve for the equation or formula for the specified variable x+ya=b,for y over Z

algebra 1
Use the Quadratic Formula to solve the equation: 5x^2  6x  8=0 .51,1.71?

math help plz
Use the quadratic formula to solve the equation: 0 = x2  5x + 6

Math
Use the quadratic formula to solve the equation. x^2 + 5x = 3

maths equations
could you please help me on this equation r = sx2/2t im really stuck Your nonuse of parenthesis makes in difficult to know what the equation is. What are you trying to do with the equation? sorry im trying to make x the subject divide each side by s r/s=

math
(A)Write the equation in standard form and calculate its discriminant. (B)Solve the equation by using the quadratic formula. (C)After solving the equation, write it in factored form. 0=8+4tt^2 Please help!!!!! :(

math
(A)Write the equation in standard form and calculate its discriminant. (B)Solve the equation by using the quadratic formula. (C)After solving the equation, write it in factored form. 7x(x2)+2(x+4)=3 Please help!!!!! :(

PreCal
Hi, can someone please solve this stepbystep for me? I really don't get it... Directions: Use the quadratic formula to solve the equation in the interval [0,2PI). Then use a graphing utility to approximate the angle x. 4cos^2x4cosx1=0 thanks.

Math
What is the solution of the following equation? 2 – 8x = 6 Is the ordered pair (2, 9) a solution of the equation y = x  7? Solve the following equation. 3(z – 2) – z = 4z – 20 Find the slope of the line that passes through the points (4, 8) and

algebra
(last one) 1.solve the equation shown. 1\4x5=27 2.Solve the equation. Round the result to the nearest hundredth. 14.1  0.3x = 1.3x  4.2 3.Multiply the equation by a power of 10 to write an equivalent equation with integer coefficients. 6.2x + 4.5 = 3.8x

Algebra 1
Use the quadratic formula to find the x value that will solve the equation 2x^23x+10=0