Thursday

May 26, 2016
Number of results: 44,152

**math linear equations**

how do u make a linear equation from a data table??
*May 9, 2011 by bob*

**chemistry**

Write molecular, ionic, and net ionic equations. HIO2(aq) + Ba(OH)2(aq) -->
*June 20, 2011 by Brea*

**chemistry**

Write molecular, ionic, and net ionic equations. HIO2(aq) + Ba(OH)2(aq) -->
*June 20, 2011 by Brea*

**Trigonometry**

Solve the equations secΘ - 1 = (√2 - 1)tanΘ
*December 24, 2011 by Kewal*

**math**

Identify the solution(s) of the system of equations, if any. -3x -4y = 2 8y = -6x – 4 a) infinitely many solutions b) (-16/9, 5/6) c) (-2/3, 0) d) no solution
*January 27, 2013 by monet*

**math**

Identify the solution(s) of the system of equations, if any. x=1 y=1 a) no solutions b) (0,0) c) (1,1) d) infinitely many solutions
*January 30, 2013 by monet*

**MATH**

Identify the solution(s) of the system of equations, if any. x=1 y=1 a) no solutions b) (0,0) c) (1,1) d) infinitely many solutions
*January 31, 2013 by Anonymous*

**maths**

The variables x and y satisfy the equations 2/x−24/y=−1 and 6/x+33/y=2. Find the product xy.
*February 13, 2013 by Rox*

**math**

(Math+lice)+ (equations+R+P- Square)= Decimal_______ I don't have a clue How to do this
*May 2, 2013 by Hanah*

**math**

Identify the solution(s) of the system of equations, if any. -4x - 4y = 4 4y = -4x - 4 A) no solution B) (0, -1) C) (-1, 0) D) infinitely many solutions
*October 20, 2013 by sam*

**Math 6**

Identify the solution(s) of the system of equations, if any. -3x-4y=2 8y=-6x-4 A) infinitely many solutions B) (-16/9, 5/6) C) (-2/3, 0) D) no solution
*October 20, 2013 by sam*

**math**

Identify the solutions of the systems of equations, if any. -4x-4y=8 4y=-4x-8 No solution (0,-2) (-2,0) Infinitely many solutions
*September 2, 2014 by amber*

**maths**

Solve the set of linear equations by the matrix method : a+3b+2c=3 , 2a-b-3c= -8, 5a+2b+c=9. Solve for a
*September 12, 2014 by segzy*

**Math **

Explain how to solve the following system of equations. What is the solution to the system? 2x+2y+z=-5 3x+4y+2z=0 x+3y+2z=1
*January 21, 2015 by Veronica*

**math - linear equation**

How do I write a system of equations that is linear and graph? Thanks
*March 31, 2015 by hy*

**math**

Solve the set of linear equations by the matrix method : a+3b+2c=3 , 2a-b-3c= -8, 5a+2b+c=9. Solve for a
*April 2, 2015 by azeez*

**Math**

how would I solve this on a graph? -3x-2y=18 and 3x-y=0 how would my equations look? y=-9+-3/2x y=0+3x correct?????
*November 12, 2015 by Alea*

**math: pre-calculus **

Solve the equations. Log(6x-1) = Log(x+1) + log4
*May 8, 2016 by Nicky*

**College Mathematics**

Guys, could you please help me with this problem? I'm a bit lost. Consider a population that begins growing exponentially at a rate of 5% per year and then follows a logistic growth pattern. If the carrying capacity is 100 million, find the actual growth rate when the ...
*August 8, 2008 by Miguel*

**College Mathematics**

You are paid a modest retainer of $325 to be on call for one week each month. Your hourly pay rate is $18. You are scheduled to work 38 hours the week you are on retainer. Your employer is required to deduct a total of 22% from your pay. a) What do you expect to earn in your ...
*September 7, 2010 by Carmen*

**mathematics**

The members of a high school basketball team are driving from calgary to vancouver,which is a distance of 675km.Each tire of their van has a radius of 32cm.If the team members drive at constant speed and cover the distance in 6h 45 min,what is the angular velocity,in radians/...
*November 12, 2013 by rahul*

**Mathematics**

What are consecutive numbers? -The sum of TWO consecutive whole numbers is 99. What are they? -The sum of THREE consecutive whole numbers is 99. What are they? Can someone please show me if there is working out? (if needed)
*April 30, 2011 by Crissy XD*

**mathematics important very important **

a group of people were asked to choose there favourite fruits.1/4 choose apple,1/3 banana and 2/5 orange and 3 people choose grapes. How many people were there in the group.
*July 20, 2014 by cbse 8th*

**mathematics**

A car braked with a constant deceleration of 45ft/s^2 producing skid marks measuring 55 ft before coming to a stop. How fast was the car traveling when the brakes were first applied? Please round the answer to the nearest hundredth. Vo= ft/s Vintial^2 - Vfinal^2= -2*...
*April 14, 2007 by Julia*

**Algebra**

I am having a problem with solving a composite function in Algebra 1 How do I solve f(x) = -2x + 1 and g(x) = 4x? Don't I need more info? No, that is all you need. I it unclear what you want to do here. see http://library.thinkquest.org/C0110248/algebra/functions_c.htm
*July 18, 2007 by Alec*

**mathematics**

seeds of type A and type B are sold in packets, each must contain 1) both type a and type b seeds 2) at least twice the amount of type B as there are type A 3) no more than 12 seeds state the minimum number in each paket of type A and of type B if here are x tye A and y Type B...
*February 25, 2008 by keisha*

**Mathematics Ms Sue help**

A high pass filter with a cutoff frequency of 250 kHz is placed in a circuit after a low pass filter with a cutoff frequency of 150 kHz. Together, these filters create which type of filter?
*May 31, 2013 by Adam*

**HELP-PROBLEM SOLVING IN MATHEMATICS**

probably the most famous approach to problem solving is Polya's four-step process. Describe the four-step process.
*October 14, 2011 by alya*

**mathematics**

1.1 the third term of an arithmetic sequence is 8 and the 15 term is 44 . Calculate: 1.1 the common difference and first term. 1.2 the sum of the first 50 terms. 1.2 1;4;7;10.... Is an arithmetic sequence .find: 1.2.1 the 30 term.
*May 19, 2015 by tankiso*

**Mathematics**

A garrison of 1200 men has sufficient ratios for 25 days at the rate of 2400g per man per day. If 300 man join them and the ratios are reduced to 2000g per man per day,how long will the road last all of them? Thank you :)
*March 13, 2012 by Elizabeth *

**Physics **

A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. A constant tangential force of 200 N applied to its edge causes the wheel to have an angular acceleration of 1.048 rad/s2. (a) What is the moment of ...
*October 28, 2014 by Brittany *

**math/algebrall**

solve the system of equations:4x - 3y equals 14 and y equals -3x plus 4 i think its either 1(4,10) (2,2)
*August 13, 2008 by Anonymous,*

**calculus**

Find equations of the tangent line and normal line to the curve at the given point. y = x^4 + 2e^x, (0,2)
*October 14, 2008 by Vishnu*

**8th Grade Math**

How do you solve this equations? (xy^-3)^-5 (3x^4)(4x^12) ab^-6 ______ c^0d^-4 x^3y^0(z^-4) Can you please show it step by step? Thanks.
*September 26, 2009 by Kendall*

**math**

Select any two integers between -12 and +12 which will become solutions to a system of two equations.
*November 15, 2009 by staci mae*

**Math**

Is there a difference between solving a system of equations by the algebraic method and the graphical method? Why or why not?
*March 10, 2010 by Craig*

**math**

please can you help me solve the following equations and please can you show your method. thanks 1) 4x+3/5x-6 = x-1/x-6 2) 4x-5/1-6x = x+10/x-6 thanks once again
*October 30, 2010 by peter*

**chemistry**

What is the molecular, ionic, and net ionic equations for Copper(II) sulfate + sodium phosphate?
*November 3, 2010 by Stacy*

**Math**

Use the echelon Method to solve the system of three equations in three unknowns. 2x+y+z=9 -x-y+z=1 3x-y+z=9
*November 6, 2010 by Erin*

**math**

PLEASE!!!!i need help on these 4: *4y=15-3x 2y=3x+21 *4x=5y-14 y=-6x-9 *5x=4y-30 2x=3y=-12 *2/3y=10+4x 5x=1/3y-8 use linear combinations to solve the system of linear equations thank you!!!
*January 24, 2011 by HELP me please asap!!*

**math**

PLEASE!!!!i need help on these 4: *4y=15-3x 2y=3x+21 *4x=5y-14 y=-6x-9 *5x=4y-30 2x=3y=-12 *2/3y=10+4x 5x=1/3y-8 use linear combinations to solve the system of linear equations thank you!!!
*January 24, 2011 by HELP me please asap!!*

**need alot of help please math**

hello i need help with system of equations theres 3 only thank you 2x+3y-17 3x+y=31 2(x-3y)=24 y=3x-2 2(x+4)=24 x+y=17
*April 18, 2011 by hannia*

**trig**

The parametric equations for a curve in the x-y plane are x=2+t^2 and y=4-3t. Determine the points where the curve intersects the x-axis.
*April 19, 2011 by casey*

**Chem**

Balancing equations? NaOH + H3PO4 ----> Na3PO4 + H2O C3H8 + O2 ----> CO2 + H2O
*April 26, 2011 by Laura*

**Science (Chemistry)**

The Average density of Earth is 5.52g/cm^3. What is its density in a. kg/m^3 b. lb/ft^3. Please help me set up these equations. Thank you!
*June 13, 2011 by Grace*

**math**

Solve each system of linear equations by both graphical and algebraic line 1 x+2y=4 line 2 x-y=0
*August 21, 2011 by Abel*

**Differential Equations**

Solve the seperable differential equation for U. du/dt = e^(5u+7t) - Using the following initial condition U(0) = 12
*August 27, 2011 by Kody*

**4th grade math help**

Explain how the variable B has two different values in the two equations 6 - B = 5 b = 1 B + 5 = 15. B = 10 Thanks!
*October 25, 2011 by Zack*

**geometry**

x is less than y and 20 less than z. write a system of equations and find the measures of the three angles
*November 7, 2011 by davonte*

**Polar equations**

write the polar eqaution 3 = r cos (theta - 315) in rectangular form.
*April 20, 2012 by tabby*

**Chemistry 132**

What is the net ionic equations for Ca Cl2 + Na2 CO3=Ca CO3 + 2Na Cl
*February 25, 2013 by Anonymous*

**Math 116**

Identify the solution(s) of the system of equations, if any. -6x-2y=12 4y=-12x-24 a. no solution b. (0,-2) c.(-2,0) d.infinitely many solutions
*June 21, 2013 by Queta*

**maths**

Prove that if p and q are rational and p is not equal to 0, the roots of the quadratic equations p x(square) + 2qx -p +2q = 0 are rational.
*August 9, 2013 by Jayden Haddy*

**Maths**

Consider the line defined by the parametric equations x=3d-10, y=2d+1. The y-intercept of this line can be expressed as a/b. Find a and b.
*October 27, 2013 by CHRIS*

**Have I done this right**

write the equations in logarithmic form 216 = ^63 answer In(e^4.5) 49 = (1/7) ^-2 answer 2=log(3x)
*May 13, 2014 by Nellie*

**algerbra**

Identify the solution(s) of the system of equations, if any. -4x - 4y = 4 12y = -12x - 12 no solution (0, -1) (-1, 0) infinitely many solutions
*September 8, 2014 by robert*

**math,help**

on one of last week homeworks i got this one wrong can someone explain to me what is the correct format. The demand supply equations for a certain item are given by: D= -5p+40 S=-p^2+30p-8 The correct answer was: $1.43 how do you get to this answer because i've tried it and it...
*April 19, 2007 by jasmine20*

**Managerial Economics/Math**

I'm working on some HW for my MBA Managerial Economics class. I've got one problem down to the end, but I'm stuck. Any help would be greatly appreciated. And, of course, if you could check my work on a & b, that would be excellent. Thanks! :) 1.) The mathematics of consumer ...
*October 5, 2007 by klynn*

**Math**

The traditional method of determining the human age equivalent of a dog is to multiply its age by 7 years. The method we used in this project was to use equations based on scientific data to determine the human age of dogs. In my opinion, the ____________method (equations or ...
*March 9, 2016 by Anonymous (Help ASAP)*

**Mathematics**

1. Show that Sin3è - Cos2è = (1 - Sinè)(4Sin^2è + 2Sinè - 1). Without using a calculator, show that è = 18 degrees is an exact solution of the equation Sin3è = Cos2è. Justifying your answer, find the exact values of: i) Sin18 degrees. ii) Sin234 degrees.
*August 3, 2011 by Edwards*

**PROBLEM SOLVING IN MATHEMATICS**

you have 6 iron balls. 5 iron balls have equal weight and 1 iron ball is slightly lighter than the other 5 iron balls. you are given a libra. find ways (most minimum) to find out the light.
*September 28, 2011 by alya*

**Math (College Level Mathematics)**

Fourier sin series for f(x) = 1, 0 < x < Pie is given by 1 = 4/n E 1/ (2n-1) times sin (2n-1) x, (0 < x < n). Using this, find the Fourier sinc series for f(x)= 1, on 0 < x < c where c > 0. Then find the Fourier series for g(x), x > 0 where g(x) = 1, 0...
*September 21, 2013 by Joy*

**Mathematics for business & finance**

A beach apartment rented for Rs. 5000 per month during the 3 summer months and for Rs. 1800 per month during the remainder of the year. During 1 year, it was occupied for only 9 months, and rentals amounted to Rs. 22600.
*September 4, 2014 by Sabpio*

**mathematics **

solve this probability :a box contains 10 marble, seven of which are black and three are red.three marbles are drawn,one after the other without replacement. find the probability of choosing 1 red,1 black and 1 red marble. in that order
*February 15, 2015 by fadil*

**Algebra (check answers)**

Could you please check my answers we are using substitution to solve each system of equations. And at the end of every solution you are supposed to have an answer as a coordinate. 1. x=2y x+y=3 Answer (1,2) 2. 2y=3 x-y=10 Answer: (10,10) 3. y=x+7 x+2y= -21 Answer: (-3,-4) 4. ...
*April 27, 2009 by Stacie*

**Mathematics for Liberal Arts**

infinites absolute value symbol l l First look at some small finite sets: Let A={1,5,9} B={U,V,W,X,Y,Z} C={Barrak Obama, Joe Biden, Hillary Clinton} Fill in the blanks with one of the symbols <,>,= lAl lBl lAl lCl lAl lAl lBl lCl Describe how you decided the comparative ...
*November 7, 2010 by Jamie*

**Mathematics**

Maria answered all the problems on her math test. She answered 80 percent of the problems correctly. If she answered 6 problems incorrectly, how many problems were on the test?
*July 19, 2012 by Willie*

**mathematics :geometric progression **

The first three terms of a geometric progression are K-3,2K-4,4K-3 in that order find the value of K and the sum of the first 8 terms of the progression
*June 30, 2015 by Diana *

**college mathematics**

Determine whether each pair of triangles is congruent. a. Triangle 1: sides 8 inches, 11 inches, and 14 inches Triangle 2: sides 11 inches , 14 inches, and 8 inches
*April 28, 2016 by Anonymous*

**Mathematics**

How would you solve for: (the square root of 7-the square root of 3)^2 ^=the power of [sqrt(7) - sqrt(3)]^2 = 7 + 3 - 2sqrt(21) = 10 - 2sqrt(21)
*December 5, 2006 by London*

**mathematics**

How many ordered pairs of solutions (a,b) are there to a/b−b/a−2/a−2/b=0, where a and b are integers from −100≤a,b≤100?
*March 16, 2013 by harsh*

**Mathematics**

Eureka is 9 years younger than Rex. In 3 years Rex will be twice as old as Eureka. How old are they now?
*September 18, 2013 by Needer*

**Algebra**

Here is the problem: You are going to make ans sell bread. A loaf of Irish soda bread is made with 2 cups flour and 1/4 cup sugar. Banana bread is made with 4 cups flour and 1 cup of sugar. You will make a profit of $1.50 on each loaf of Irish soda bread a nd a profit of $4 on...
*October 13, 2008 by Skyelar*

**Algebra**

A farmer plans to plant 270 acres of his farm with wheat and soybeans. For every 2 acres of land planted with soybeans, the farmer wants to plant 7 acres of land with wheat. The farmer uses the following system of equations to determine how many acres of each crop he should ...
*April 25, 2011 by mary*

**math**

Solve for each system and equations. y=-x-2 y=3x+2 set -x-2=3x+2 solve for x. thanx i was minusing 2 instead of adding two thanx alot
*December 17, 2006 by Tony*

**math**

what are the general equations for the conic sections 1)parabola 2)circle 3)ellipse 4)hyperbola 5)inverse hyperbola
*September 5, 2007 by brittney*

**equations**

Can anyone check this answer out for me... 2(5-6y) = 2 x 5 , 2 x -6 = 10 - 12y or should the 12y appear before the 10 ??? am not sure of the rule... thanks
*January 10, 2008 by tommy*

**math**

Find the value of k such that the system of linear equations is inconsistent. {4x-8y = -3 {2x+ky = 16 I know that the answer is k = -4 but I don't know how to solve to get that answer.
*May 7, 2008 by anonymous*

**equations**

does it make a diffrence what two points you chooose on a stragight line to find the slope of the line
*September 3, 2008 by isaiah*

**Physics help!**

I need to know all of the equations for WORK problems (Physics). I'm not sure where to find them. if someone could help id appreciate it.
*December 7, 2008 by Jim*

**math**

can someone explain step by step to solve system equations and example ill show here 3x+4y=-2 x=-2y
*January 13, 2009 by sherri*

**math**

Which pair of equations share a solution? Answer: 5x+2=32 4x+9=5(14-x)-7 -I know the answer but I have absolutely no idea how to get it help please!
*October 28, 2009 by Channing*

**math**

the sum of a numbers is 15 and their difference is 4. form a pair of simultaneous equations and solve to find the numbers.
*January 15, 2010 by disha*

**Math - Equations of planes**

Write a vector equation and scalar equation of the plane containing lines [x,y,z]= [-2,3,12]+s[-2,1,5] [x,y,z]= [1,-4,4]+t[-6,3,15]
*August 27, 2010 by Shaila*

**chemistry**

strontium nitrate reacts with potassium iodate. What is its molecular,ionic and net ionic equations?
*October 23, 2010 by Stephanie*

**Math**

We are doing multi-step equations in math. And this equation is kind of hard for me because the variable is alone. h-6+7h=42 What does "h" equal?
*May 5, 2011 by Jennipher*

**Math**

When you use the quadratic formula (x= -b+/=......) can you use that on equations like X^4+2X-8? If not, how would you algebraically find the roots of: X^4+2X-8? Thanks!
*June 19, 2011 by Christopher*

**Math**

p - | 1 | 2 | 3 | 4 | q - | 5 | 9 | 13| 17| The table above represents a relationship between p and q. which of the following equations could be used to describe the relationship? a. q = p+4 b. q = p+7 c. q = 4p+1 d. q = 5p e. q = 6p-1
*August 22, 2011 by Amy*

**quadratic equations**

can you solve the equation using the quadratic formula x2 + 3x = 7? Explain and provide an exact answer.
*January 17, 2012 by becca*

**Calculus..**

5. Eliminate the parameter and write the corresponding rectangular equations: x=3-2sin theta and y=1+5 cos theta
*July 3, 2012 by Isabella*

**Math**

f(x)=3/(x+1) g(x)=(x^3)/5 h(x)=x^2+7x+10 a. f(x)=10 b. f(x)=g(x) c. g(x)=h(x) d. f(x)=h(x) I am told to solve the equations, but the term "solve" is so vague. I don't know what I'm doing. Please help lead me in the right direction. Thank you.
*January 24, 2013 by Morgan*

**Alg 3**

Put the following equations in standard form. State the center and the radius. x^2-5x+y^2+4y=-3 I get how to end up with (-2.5,2), what is the radius?
*April 3, 2013 by Shelby*

**organic chemistry**

Write equations showing how caffeine could be extracted from an organic solvent and subsequently isolated
*April 16, 2013 by Kelli*

**Calculus**

Graph the parametric equations: x=cos(t) y=sin(t) z=cos(2t) How would I go about solving this problem? thanks!
*April 21, 2013 by Anonymous*

**Calculus**

Graph the parametric equations: x=cos(t) y=sin(t) z=cos(2t) How would I go about solving this problem? thanks!
*April 21, 2013 by Anonymous*

**maths**

for the curve y=(x^2+1)/(x^2-4), find: (i). The cordinates of the turning points (ii). The equations of the asymptotes (iii). Sketch the curve
*October 9, 2013 by changaya*

**Math**

You have used tables, equations, and graphs for math. When would you use each representation. explain
*November 16, 2013 by Anonymous*

**Science**

Balancing equations a) Mg + HCl --> MgCl2 + H2 b) K + H2O --> KOH + H2 c) Li + H2O --> LiOH + H2 d) Fe + O2 --> Fe2O3 Please help
*November 16, 2013 by Anonymous*

**Science**

Balancing equations a) Mg + HCl --> MgCl2 + H2 b) K + H2O --> KOH + H2 c) Li + H2O --> LiOH + H2 d) Fe + O2 --> Fe2O3 Please help
*November 16, 2013 by Anonymous*

**science**

Balancing equations a) Mg + HCl --> MgCl2 + H2 b) K + H2O --> KOH + H2 c) Li + H2O --> LiOH + H2 d) Fe + O2 --> Fe2O3 Please help
*November 17, 2013 by anonymous*