# why does the equation x^2=-9 has no real solution why does the equation x^2 = 9 has two solutions

56,329 questions, page 264-
## Chemistry

How would I find the limiting reagent in the chemical equation...CuSO4*5H2O+2K2C2O4*H2O-->K2[Cu(C2O4)2]*2H2O+K2SO4+5H2O I got that K2C2O4 was the limiting reagent but I don't know if that is correct.

*asked by Zachary on July 9, 2012* -
## chem

a certain substance strongly absorbs infrared light having a wavelength of 3.75µm. what is the frequency of this light in hertz? i know that i have to use the equation c = frequency x wavelength and that c = 2.998 x 10^8 m/s. how do i convert that to

*asked by lyne on January 2, 2009* -
## Algebra

A bank teller counts her $10 and $5 bills at the end of the day. The total value of the money is $595. Let f represent the number of $5 bills. I have to write an equation that represents the total value of the money. I know f = 5 and 2f = 10 but I am stuck

*asked by Kristen on May 5, 2015* -
## Calculus

Given the equation xy = 2, set up an integral to find the length of path from x = a to x = b and enter the integrand below. I did the integral from b to a and set it equal to the sqrt(1+4/x^4), because I found y to equal 2/x and the derivative to be

*asked by Katelyn on March 13, 2009* -
## physics

A uniform electric field is directed upward and has a magnitude of 5 N/C. What are the magnitude and direction of the force on a charge of -3 C placed in this field? F=Eq E=5 q=-3 5(-3)=-15N Downward Ok I have the downward correct the -15 is incorrect. Did

*asked by kkpdiluvu on July 25, 2012* -
## Calculus 1

Use Newton's method with initial approximation x1 = −2 to find x2, the second approximation to the root of the equation x^3 + x + 1 = 0. *I got -1.307692 for my answer but it said that was wrong, so then I tried rounding it to two decimal places and got

*asked by TayB on November 12, 2015* -
## Finite math

Consider the supply equation p=2x+10, where x is the quantity supplied in units of 1,000 and p is the unit price in dollars. Determine the number of units of the commodity the supplier will make available in the market at the given unit price. p=18

*asked by Carrie on November 11, 2018* -
## Chemistry

A sample of Xe gas in a 20.00 liter container at 1.45 atm and 85 degree Celsius . It is compresses to a new value of 0.250 liter at 350 degree Celsius. What is the pressure the Van der Waals equation. help please!

*asked by Sean P. on May 22, 2010* -
## chemistry

Consider the exothermic reaction CoCl42-(aq) + 6 H2O(l) Co(H2O)62+(aq) + 4 Cl -(aq). Will the equilibrium concentration of CoCl42- increase or decrease when the following changes occur? a) HCl is added. (b) Co(NO3)2 is added. both of those compounds are

*asked by Robbin on April 19, 2011* -
## Substitution Method

Use the Substitution method to solve the system of equations. x + y = -4 x - y = 2 x + y = -4 x - y = 2 In the second equation, x= y+2 Putting that in the first.. (y+2) + y= -4 subtract two from each side, then divide each side by two to get y. Then, put

*asked by Margie on October 16, 2006* -
## Calculus

Determine the maximum sustainable yield (the maximum harvesting and still keep the population stable) of population of logistic growth is Kr/4. I know the logistic equation with constant harvest rate, h, is dx/dt=rx((1-x/k)-h) I do not know how to apply

*asked by L.S. on December 14, 2011* -
## algebra

The radius needed to create a sphere with a given volume V can be approximated by the equation r = 0.62(V)1/3. Find the radius of a sphere with a volume of 216 cubic meters. Round the answer to the nearest hundredth.

*asked by Anonymous on July 7, 2013* -
## Trig

Find all solutions of the equation in the interval [0,2pi) 2 cos^2 x-cos x = 0 -2cos^2 + cosx + 0 (x+1/2) (x+0/2) (2x+1) (x+0) -1/2,0 2Pi/3, 4pi/3, pi/2, 3pi/2 my teacher circled pi/2 and 3pi/2 What did I do wrong? I don't understand...

*asked by Anonymous on April 10, 2017* -
## help...solving a polynomial....algebra

solve this please....help me....12x(squared)+7x-10 Do you wish to factor this trinomial? If so, the factors are: (4x + 5)(3x - 2) You can use the FOIL method to check. If this is supposed to be an equation: 12x^2 + 7x - 10 = 0 ...then set each factor equal

*asked by Taylor on January 18, 2007* -
## Math

The radius needed to create a sphere with a given volume V can be approximated by the equation r = 0.6(V)^1/3. Find the radius of a sphere with a volume of 729 cubic meters. Round the answer to the nearest hundredth.

*asked by Anonymous on March 27, 2010* -
## Math

The profit (in millions of dollars) from the sale of x million units of Blue Glue is given by p= .7x-25.5. The cost is given by c= .9x +25.5 (a) Find the revenue equation. (b) What is the revenue from selling 10 million units? (c)What is the break-even

*asked by Brooke on April 9, 2013* -
## chem

The full inoic equation for an electrochemical cell is Br2 + Zn yields 2Br- + Zn2+. write the half reaction that occurs at the anode and the half reaction that occurs at the cathode

*asked by Jessica on June 7, 2010* -
## math

The profit (in millions of dollars) from the sale of x million units of Blue Glue is given by p= .7x-25.5. The cost is given by c= .9x +25.5 (a) Find the revenue equation. (b) What is the revenue from selling 10 million units? (c)What is the break-even

*asked by Brooke on April 9, 2013* -
## algebra

IN 1988, the number of transmitters in the Intel 386 Sx was 275,000. It has doubled every 24 months since then. Write an equation that predicts the number of transmitters in a micro processer n years after 1988.

*asked by Felicia on October 30, 2008* -
## AP Chem

Helium gas, He, at 22 degrees C and 1.00 atm occupied a vessel whose volume was 2.54 L. What volume would this gas occupy if it were cooled to liquid-nitrogen temperature (-197 degrees celcius). What is the equation?

*asked by Anna on November 9, 2008* -
## algebra

Explain why the point-slope formula cannot be used to find the equation of a line that is parallel to the y-axis. When graphing the equations y =2x -2,y=2x.and y = 2x + 3, what observation can you make about the graphs. Can you make the same observation

*asked by Sissy needs help on February 15, 2012* -
## Chem II - Equilibrium

6.75 g of SO2Cl2 was placed in a 2.00L flask. At 648 K 0.0345 moles of SO2 was present. Kc for the reaction SO2Cl2 SO2 + Cl2 is _____ 3.83 x 10 -2 4.71 x 10 -3 1.12 x 10 -2 6.12 x 10 -4 Ok, on this one, I think I am missing something. Don't I need Kc if I

*asked by Ken on June 17, 2008* -
## calculus

(a) Modifying the parametric equations of a unit circle, find parametric equations for the ellipse: x^2/a^2 + y^2/b^2 = 1 (b) Eliminate the parameter to find a Cartesian equation of the curve x=2sint; y=4+cost; t >(or equal to) 0

*asked by Anna on August 8, 2011* -
## Algebra

Mutiplying a Binomial by a Trinomial (FOIL) First, Outer, Inner, Last Method (3X+2)(X-1)(X+3) I have tried equation several times. The book says the answer is: 3X 3rd + 8X 2nd - 5X -6 I get: 12X 2nd - 6X + 3X 3rd -4 Not sure if i am doing it wrong or if

*asked by G on April 22, 2008* -
## Math

Eliminate the parameter and write the corresponding rectangular equation whose graph represents the curve. x = sec Q y = cos Q x^2 + y^2 = 1/cos^2 + sin^2/cos^2 = x^2(1 +sin^2) = x^2(2-cos^2) x^2(2-1/x^2) = 2x^2 - 1 x^2 - y^2 = 1 My teacher said to use

*asked by Abbey on May 4, 2010* -
## Algebra

Show work to change the linear equation below to slope-intercept form and then, list the slope and y intercept coordinate for the: (leave answers as an integer or a fraction in improper form). 20+3x-8y=0

*asked by Tariq Glaster on February 10, 2012* -
## chem

. Antimony pentachloride decomposes according to the following equation. SbCl5 (g) → SbCl3 (g) + Cl2 (g) Suppose that 10.0 g of antimony pentachloride is placed in a 5.00 L container and allowed to establish equilibrium. Calculate the concentration of

*asked by anon on March 20, 2015* -
## Math

Have been given a table of values and to complete it using the equation, y = x^2 - 3x + 10. (-1,14), (0,10), (1,8), (2,?), (3,10), (4,?) and (5,20). You draw a graph, using 2cm=1 unit on x-axis and 2cm=2 units on y-axis. Now my question is...how do you

*asked by Christopher on March 3, 2016* -
## Chemistry

An ionic compound dissolved in water, separated into its ions according to the following equation: MA2 (s)--> M^+2 (aq) + 2A^- (aq). If the ground state electron configuration of the two ions are similar to those of neon. Ne, and of Kr, the two elements in

*asked by Lil on March 29, 2017* -
## math

in february, rent increased from $875 to $915 per month. What is the percent of increase to the nearest percent? should we like subtract 875 from 915 which gives us 40. and the set the equation x% * 815 = 40 please help! i am stuck in this question!!!

*asked by Anonymous on February 10, 2009* -
## Math

what you have learned about rational expressions and their applications, and then consider how you might apply rational expressions to your daily life. Explain this application, and discuss what the equation might be. Did the study of these types of

*asked by Jaan on September 11, 2007* -
## Chemistry

Calculate the energy required to produce 5.00 mol of Cl2O7 on the bases of the following balanced equation. 2Cl2(g) +7O2(g) +130kcal - - > 2 Cl2O7 5.00 kcal 65 kcal*** 130 kcal 325 kcal

*asked by Ben on May 16, 2016* -
## Math

The perimeter of a rectangle is 36ft. the length is 10ft. longer than the width find the dimensions. Write a system linear equation an solve the resulting system let x be the length and y be the width.

*asked by Denise on August 5, 2013* -
## Algebra

How would you solve these types of problems? They confuse me! 1. Write the quation of the line that passes through points (-8,-6) and (5,3) 2. Write the equation of the line that passes through (3,-4) and has a slope of 2. I know that you have to do

*asked by Jill on October 28, 2008* -
## Math

Trevor went to an amusement park where ride tickets cost $2.50 each. He plans to spend $15.00 on refreshments while at the park. He has a total of $65.00. Write an equation to find the number of ride tickets he can buy.

*asked by Brooke on March 25, 2015* -
## algebra

How do you set this up as an equation? There is a total of 1600 cups and bowls. cups cost 1.90 and bowls cost 2.85. how many of each do you have if the bill was 3430.00. and that includes 105.00 saucer.

*asked by jack on September 10, 2009* -
## Chemistry

Trying to wrap my head around this, thanks for the help: You have 8.63 moles of C2H6O2 in the following unbalanced equation: (I already balanced it, here is the balanced): C2H6O2 + 5 O2 â†’ 4 CO2 + 6 H2O How many moles of water are produced in this

*asked by BHT on September 22, 2016* -
## Chemistry

Heat is given off when hydrogen burns in air according to the equation: 2H2 + O2 ---> 2H2) What is responsible for the heat? I know the answer is froming hydrogen-oxygen bonds gives off energy, but why?

*asked by Jessica on January 17, 2014* -
## algebra 2

You have $25 to park your car in a garage in the city. The garage charges $4 for the first hour and $3 for each additional hour. Write an equation & determine the possible number of hours you can park. Help Again!

*asked by Jonathan on August 24, 2014* -
## calc

The slope of the tangent line to the parabola y=4x2–3x+5 at the point where x=–5 is:______ The equation of this tangent line can be written in the form y=mx+b where m is:_________ and where b is:______? The first to blanks are -43, but what is b?

*asked by Adam on April 22, 2010* -
## matg

transform function f(x)=x^2 into a new function g(x) by shifting f(x)horizontally 9units to the rig t, reflecting the result across the x axis, and then shifting the result up 4 units. find the equation g(x)

*asked by jennifer on April 17, 2009* -
## chemistry

Propane, C3H8, reacts with oxygen according to the following balance equation. If 44 grams of propane react completely with sufficient oxygen, how many grams of water are produced?

*asked by salende on June 5, 2016* -
## math

Bacteria is growing in a petri dish. Initially, there were 15,000 bacteria in the dish. It triples every 8 hours. Write the equation to represents this growth after t hours.

*asked by Jordan on April 10, 2014* -
## calculus

Can you give me a good website on the topic, slope fields and differential equations? I need to match six slope fields with the correct differential equation. 1. dy/dx=x-y 2. dy/dx=1+x 3. dy/dx=cosx 4. dy/dx=2x 5. dy/dx=x+y 6. dy/dx=y(2-y)

*asked by Anonymous on November 7, 2007* -
## geometry

Write and solve an equation to answer the question. Round your answer to the nearest tenth of a percent, if necessary. 140 towns is what percent of 1940 towns

*asked by kim on December 2, 2011* -
## Trig

On the same set of axes, sketch and label the graphs of the equations y = cos 2x and y = –2 sin x in the interval 0 ≤ x ≤ 2π. How many values of x in the interval 0 ≤ x ≤ 2π satisfy the equation –2 sin x – cos 2x = 3? A.1 B.2 C.3 D.4 E.0

*asked by Kiki on March 30, 2014* -
## Chemistry

FeCl3(aq) + K2S(aq) Fe2S3(aq) + KCl(aq) Consider the unbalanced equation above. What is the maximum mass of Fe2S3 that can be produced when 54.5 mL of 0.480 M FeCl3 and 98.5 mL of 0.420 M K2S react?

*asked by Connor on October 7, 2013* -
## trig

a plane is flying at an altitude of x with the distance at 800 meters with an angle of 70 degress. what equation would you use to solve. tan70= x/800 tan70= 800/x sin70= x/800

*asked by tom on January 26, 2011* -
## Inverse of log function

Find the inverse of f(x) = log(2+x) - 4 the base is "a" Call f(x) y y = loga(2+x) -4 y+4 = loga(2+x) a^(y+4) = 2 + x x = a^(y+4) - 2 drwls, you have merely solved the equation for x. The question was to find the "inverse", so the actual answer should be y

*asked by Jen on March 1, 2007* -
## Algebra

Write an equation of the line satisfying the given conditions. Parallel to the line y=-5x-6 and a y-intercept of -2. Would it be: y=-5x-2 The slope stays the same due to it being parallel and the only thing that changes is the y-intercept and that would be

*asked by Carrie on April 18, 2010* -
## Chemistry

This is a stoichiometry equation. Cu(s) + 4(HNO3)(aq) -> Cu(NO3)2(aq) + 2(NO2)(g)+2(H2O)(l) If you use 6 moles of nitric acid 4(HNO3), how many moles of Copper (II) Nitrate Cu(No3)2 will be produced?

*asked by Bryce on February 14, 2016* -
## calculus

c be the curve of the equation y=3x^5+10x^4-10x^3+60x^2+25x-5. among all points on the curve over the interval [-1,3], find the coordinates of the highest slope and lowest slope

*asked by ruth on October 11, 2010* -
## Math

1)Write a quadratic equation with integer coefficients that has -4+7i(Radical 3) and -4-7i(Radical 3) as its roots. 2) Solve your answer to part 1 using the quadratic formula verifying your answer

*asked by Jason on December 11, 2008* -
## Maths (Vectors)

I have two sets of coordinates: ax, by, cz ex, fy, gz (not using numbers to keep it more generic). I have a right-handed parametric basis of . I need to state a vector parametric equation for r(t) in this basis, using the coordinates I have in this plane.

*asked by Hannelore on June 1, 2017* -
## Algebra2

Are these Correct? Write an equation for the line in point/slope form and slope/intercept form that has the given condition. 1. Passes through (3, 2) and is parallel to 2x-y=4 = 4x+y 2. Passes through (-1, -1) and is perpendicular to y = 5/2x + 3 =6\7x-2

*asked by Victoria on November 29, 2012* -
## Chemistry Need Help

Given the chemical equation, Cl2 + F2 2ClF, how many moles of ClF are produced in the reaction, if 1.50 moles Cl2 are made to react with 1.75 moles F2 ? I got the answer 3.50 moles but it was wrong. Can anyone help me please.

*asked by Matthew on February 27, 2015* -
## chemistry

balance the following equations and write an equation for the mole to mole relationship and the mass relationship a. Na + H2O > NaOH + H2 b. HCl + KOH > KCl + H2O

*asked by shaggy on April 20, 2008* -
## science

Ammonia, NH3, can be made by reacting nitrogen and hydrogen and the equation is N2 + 3H2 --> 2NH3 How many moles of NH3 can be made if 12 moles of H2 react with enough N2? mol

*asked by heather on August 24, 2017* -
## Algebra

Can you pleas Solve the quadric equation step by step 4x square =13x+2 4x^2 = 13x + 2 subtract 13x and 2 from both sides 4x^2 - 13x - 2 = 0 Now use the quadratic formula, since it does not factor.

*asked by Tony on April 11, 2007* -
## Trigonometry

Convert to polar coordinates with r greater than or equzl to 0 and theta between 0 degrees and 360 degrees Write the equation inpolar coordinates x squared + y squared = 2

*asked by Steve on May 30, 2008* -
## Chemistry

Create a balanced equation for the reaction between sodium and bromine. Find how many grams of salt can be made from 5.00 grams of sodium and unlimited bromine. Is it about 39.8 g NaBr2?

*asked by Anonymous on February 14, 2016* -
## Math

Erin bought 12 yards of landyard.She cut the lanyyard into 1/2 yard pieces. Write an equation that represents the number of pieces of landyard,n,that Erin has now.

*asked by Leany on April 23, 2016* -
## 11 U chemistry

Predict the products of a reaction between solid beryllium chloride and solid potassium,write the products in a balanced chemical equation also indicate what type of reaction this is.

*asked by timothy on June 7, 2011* -
## math

gracie read 150 pages of a book. the book is 227 pages long which equation shows the amount she still needs to read to finish a story

*asked by Anonymous on October 22, 2014* -
## Math

Suppose dasha has 217 grams of sand in the bucket and 146 grams of shells. What is the mass of the sand and the shells? Write an equation to solve.

*asked by Esna on April 27, 2017* -
## chemistry

Calculate the mean speed, using equation 1.13 and 1.17 of (a) He atoms and (b) CH4 molecules at (i) 79 K, (ii) 315K, and (iii) 1500K. Vrms= (2(Ek)/m)^1/2 Vrms= (3RT/M)^1/2 M(He)= 4.0*10^-3 kg/mol M(CH4)= 16.0*10^-3 kg/mol

*asked by help?!?!? on August 28, 2015* -
## Algebra 2

-2/3x + 3

*asked by Daren on January 22, 2007* -
## find the polynomial

degree 4 zeros i & (1+i) constant term 12 How do I start this problem. Thanks A degree four polynomial will have the form (x^4 +... x + c), where c is a constant. You will need to generate an equation that has the above form, using c=12. Solve for the

*asked by Jen on February 1, 2007* -
## math

the total cost of manufacturing 100 cameras per week is 700 $ and 120 cameras per week is 800 $ ,the the cost equation ,assuming it to be linear is

*asked by anthy on November 1, 2011* -
## math

There are 28 students in Ms. Rainbow's Math class. The number of girls is 10 less than the number of boys. If there are b boys in the class, write an equation to correctly model the situation.

*asked by Anonymous on November 5, 2011* -
## Algebra 1: 8th Grade

Explain why the graph of an equation in the form y=kx always goes through the origin. Give an example of a graph that shows direct variation and one that does not show direct variation. I don't really get the question.

*asked by Joy on October 7, 2008* -
## Math

I need help setting up the equation. I think I'm doing something wrong. Problem: a recipe needs 2 and 2/3 cups of flour to make two regular batches of cookies. Now I need to make multiple batches of cookies. This is what I have 2 and 2/3 over 24 = x over

*asked by Stacy on August 26, 2018* -
## Algebra

The cost, in millions, to remove x% of pollution in a pond is modeled by the equation: . What is the cost to remove 75% of the pollution? Hint: Plug in and calculate, do not convert to a decimal.

*asked by Chelsea on December 13, 2011* -
## Math

Jackie mows a strip of uniform width around her 25 m by 15 m rectangular lawn and leaves a patch of lawn that is 60 percent of the original equation. what is the width of the strip

*asked by Kestrel on October 23, 2011* -
## chemistry

write a net ionic equation for the following: Copper (II) sulfate reacts with Ammonium hydroxide to produce Copper (II) oxide, Ammonium sulfate, and water.

*asked by rachel on October 26, 2010* -
## Advanced Math

Write the standard form of the equation of a circle that passes through the points at (0,8) (8,0) and (16,8). Then identify the center and radius of the circle. (x-8)^2 + (y-8)^2 = 64 (x^2 / 64) + (y^2 / 64) = 64 center=(8,8) radius=8 I got it wrong don't

*asked by Anonymous on April 16, 2009* -
## chemistry

What is the concentration of IO3- (total volume: 20mL) when you have .00001mol of HSO3- (total volume: 10mL)? Use the balanced equation IO3-(aq)+3HSO3-(aq)>>>I-(aq)+3SO4^2-(aq)+3H+(aq)

*asked by jessica on May 1, 2016* -
## math

Sam bought a new car for $26,500. The car depreciates approximately 13% of its value each year. a) What is the decay factor for the value of this car? b) Write an equation to model the decay value of this car?

*asked by mary on August 2, 2015* -
## algebra

suppose a ball is thrown upward from a height of 4.5 feet with an initial velocity of 21 feet per second. write an equation relating the time t and height h of the ball

*asked by sam on January 26, 2014* -
## math

Judie weighed 7 3/8 pounds when she was born .By the age of 6 she was 5 times as heavy . if A stands for pounds Write the equation you would use to find Judie weight at age 6

*asked by anny on March 24, 2014* -
## Advance Math

Find solutions of the equation in the interval [0, 2pie} Cos(x+pie/3)+Cos(x-pie/3)=1 I need to show work without calculator and be able to check in order for it to work Thanks for help

*asked by Mike on May 24, 2010* -
## Math

A phone company uses the equation y=0.15x+10 to find y, the monthly charges for a customer sending x text messages. How many text messages are sent if the monthly charge is $77.50?

*asked by Amy on December 5, 2016* -
## Chemistry

Modified Arrhenius theory question? using the modified Arrhenius theory, write a chemical reaction equation to explain the acidity of glycolic acid.

*asked by Sam on November 11, 2009* -
## math

I was given the equation (y-2)^2 - x^2 =1 and asked to locate the center, vertices,and asymptotes. ifound the center to be (0,2) and the verticies are(0,1)and (0,3). but I'm not sure how to find the asymptotes. Could you please help me find them and

*asked by Tye on March 16, 2010* -
## Algebra 1

The monthly cost C for a cell phone is $20 each month plus $.10 for each minutes used. Which equation can be used to find the total cost (in dollars) for a month when m minutes are used? A. C= m+20 B. C= 0.1m+20 C. C= 10m+20 D. C=20m

*asked by Anonymous on September 18, 2014* -
## Algebra

Find three ordered pairs (a,b) that satisfy the equation 3a - 5b = 9. So far, I got (3,0). I'm having trouble finding others. Does anyone have suggestions on other easy ways to find ordered pairs besides guess-and-check? Thank you!

*asked by Cassie on February 27, 2009* -
## algebra

sally's print shop will print any image on a frisbee for a cost of $1.50 per frisbee and a one-time charge of $7. write an algebraic equation using c for cost and f for frisbees.

*asked by lakeeta on January 21, 2008* -
## Calculus

Find the area in the first quadrant bounded by the arc of the circle described by the polar equation r = (2 sin theta)+(4 cos theta) A. 5pi/2 B. (5pi/2)+4 C. 5pi D. 5pi + 8

*asked by Tracy on November 21, 2011* -
## Math

The density of ocean water at the surface is 1025 kg per meter cubed. Write an equation to calculate the mass of 12 meters cubed of ocean water

*asked by Frankie on October 6, 2014* -
## chemistry

Show a balanced equation for a diprotic acid reacting with a tribasic base. I have an example of a diprotic acid as H2SO4 and a triprotic base as H3PO4. can i use those? if so please help balance.

*asked by jamieson on November 19, 2009* -
## math

Paul needs 2 1/4 yards of fabric to make a tablecloth. How many tablecloths can he make from 18 1/2 yards of fabric. Define the variable write the equation solve and label.

*asked by obama on November 7, 2010* -
## Algebra

Restated:For each equation, determine whether its graph is symmetric with respect to the -axis, the -axis, and the origin. 4y^4+24x^2=28 and y=1/(x^2+5) Check all symmetries that apply x-axis,y-axis,origin or non of the above.

*asked by Jena on February 4, 2011* -
## gse 122

(1) y varies partly as D an partly as the cube root of D.when Y=6, D=27 an when Y=11,D=1/8.find Y when D=3. Correct to 2 decimal point. (2) using completing the square method find the root of the equation 8x+6x-5=0

*asked by kakjing pirbut moses on October 25, 2016* -
## Math

Malcolm is downloading a file that is 50.4 mb. His Internet connection had a download speed of 1.2 mb per seconds. Write an equation to find it the time in seconds it will take to download the file

*asked by Amy on March 23, 2015* -
## college algebra

On the graph, plot all relevant points for y=x^2-4x+3. Then give the equation for a graph that shifts up 2 units and to the left 3 units. If it is a function, give its domain and range. Thank you!!

*asked by jenny on October 23, 2008* -
## org. chem

Draw the acetal obtanined from 1-propanol and benzaldehyde Draw the ketal obtained from 2-propanol and 3-methylcyclpentanone Can someone tell me where the actal/ketal comes from or do I just add it to the equation. Not sure how to start this. Thanks :)

*asked by meghan on February 11, 2013* -
## algebra

Kim spent a total of $100 for a laptop and 4 blank cds. The cost of the laptop was $92. Write and solve an equation to find, c, the cost of each blank CD

*asked by Anonymous on October 22, 2012* -
## Math

The variables x and y are related by the equation y=ax/(x-b),where a and b are constants .When y is plotted against y/x ,a straight line is obtained .The line has gradient 3 and y-intercept 2. (i)Find the values of a and b (ii)Find the values of x which

*asked by Claudia on August 8, 2013* -
## chemistry

Lead ii nitrate was added to a small test tube as well as Sodium hydroxide. What is the equilibrium equation for the reaction of lead ii ions and hydroxide ions?

*asked by Keli on March 31, 2011* -
## Algebra 2

Part A: For what real values of c is x^2 + 16x + c the square of a binomial? If you find more than one, then list your values separated by commas. Part B: For what real values of a is x^2 + ax + 25 the square of a binomial? If you find more than one, then

*asked by Aria on October 7, 2017*

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