Better Students Ask More Questions.

Ask a Question ▻

Math

sqrt( x^2 - 5x + 4 ) = sqrt( x^2 + 3x -2) find x.

Posted by feres on November 24, 2010 at 11:36 AM via web.

1 educator answer.

What is the intersepting point of y = 2x^2 - 7 and the line y= -2x + 1

Posted by yasmin130 on November 24, 2010 at 11:30 AM via web.

Differentiate g(x) = x^3 * cos^2 x

Posted by lalooo on November 24, 2010 at 11:26 AM via web.

solve the sustem : 2x + y = 3 3y - 2x = 2

Posted by nano75 on November 24, 2010 at 11:22 AM via web.

Find the numbers such that their sum is 23 and the difference is 1

Posted by totoo on November 24, 2010 at 11:18 AM via web.

Find the area between the line: y= 4x + 2 and x = 2 and x = 3

Posted by jude69 on November 24, 2010 at 11:13 AM via web.

simplify the followingL 2 log5 a - 3log b + log ( a+ b)

Posted by nadooosh on November 24, 2010 at 11:09 AM via web.

2 educator answers.

What is the maximum value of f(x) = (x-3)/ (2x^2 - 5)

Posted by ryanomar on November 24, 2010 at 11:03 AM via web.

find the absolute value of z if 2z - i = 5 - 4i

Posted by clara2 on November 24, 2010 at 10:59 AM via web.

find, to 2 decimal places, or a multiple of π (sorry, that should've typed as pi), all values of...

Posted by nerdeehoohaa on November 24, 2010 at 7:12 AM via web.

Be the first to answer.

Evaluate the product (1 - 4^-1)(1 - 9^-1)...(1 - 100^-1).

Posted by fromici on November 24, 2010 at 2:41 AM via web.

Prove that (x^8+x^6+x^4+x^2+1)/(x^4+x^3+x^2+x+1) = x^4-x^3+x^2-x+1.

Posted by fakeyelid on November 24, 2010 at 2:23 AM via web.

Simplify the expression [4-(3+x)/x]/[(x-1)/(x+1)]-[4/(x-x^2)]

Posted by zarvamea on November 24, 2010 at 2:10 AM via web.

What is x for (x^2-1)/(x^2-4) > -1 ?

Posted by leeaeel on November 24, 2010 at 2:03 AM via web.

What is the ratio of the circumferences of two circles that have diameters in the ratio 1:5 ?

Posted by iszabelle on November 24, 2010 at 1:57 AM via web.

Evaluate if the function y = 3x^5 + 7x^3 + 2x + 1 is bijective .

Posted by labrrat on November 24, 2010 at 1:44 AM via web.

Verify if lnx-2(x-1)/(x+1)>0.

Posted by t3rm1ka on November 24, 2010 at 1:36 AM via web.

Find the derivative of the following functions:f (x)= x^8 sin 5x

Posted by mariavoce on November 24, 2010 at 1:15 AM via web.

Differentiate f (z)= cos z/1+ sin z

Posted by annaball111 on November 24, 2010 at 1:09 AM via web.

Write 2 log3 x + log3 5 as a single logarithmic expression.

Posted by carlosnas on November 24, 2010 at 1:05 AM via web.

Factor the algebraic expression 6x2 - 21xy + 8xz - 28yz.

Posted by hekmatzeft on November 24, 2010 at 1:00 AM via web.

Simplify | - x2 + 4x - 4 |.

Posted by colinhartmann on November 24, 2010 at 12:58 AM via web.

Find the constant k so that the quadratic equation 2x2 + 5x - k = 0 has two real solutions.

Posted by naderyacoub on November 24, 2010 at 12:53 AM via web.

Find the point(s) of intersection of the parabola with equation y = x2 - 5x + 4 and the line with...

Posted by markbald on November 24, 2010 at 12:47 AM via web.

A circle of center (-3 , -2) passes through the points (0 , -6) and (a , 0). Find a.

Posted by hatemaldeeb on November 24, 2010 at 12:38 AM via web.

If x < -7, simplify |4 - |3 + x||

Posted by mytomcruise on November 24, 2010 at 12:33 AM via web.

Find all real solutions to the quadratic equation x2 + 2 = x + 5

Posted by reginakennedy on November 24, 2010 at 12:29 AM via web.

Find the distance between the points (2, 3) and (0, 6).

Posted by tnt123tnt on November 24, 2010 at 12:26 AM via web.

Find the center and radius of the circle whose equation is given by: (5 - x)^2 + (y - 1)^2 = 4

Posted by ranironi on November 24, 2010 at 12:22 AM via web.

How many Kilos of Pure water to be added to 100 Kilos of 30% saline solution to make it 10%...

Posted by calraedwards on November 24, 2010 at 12:18 AM via web.

Given x1,x2,x3,x4 the solutions of the equation x^4+1=0 calculate the sum of the solutions and...

Posted by fairydrink on November 24, 2010 at 12:14 AM via web.

Find all rational zeros of P(x) = x3 - 7x + 6

Posted by meganchamlee on November 24, 2010 at 12:14 AM via web.

Solve for x 25^x - 6*5^x + 5 = 0.

Posted by n1kaa on November 24, 2010 at 12:06 AM via web.

What is vector b if a*b=14 and c*b=16? a=3i+j, c=5i-2j

Posted by xuediot on November 23, 2010 at 11:57 PM via web.

Transform from algebraic form to trigonometric form the complex number z

Posted by demadcrazy on November 23, 2010 at 11:28 PM via web.

Solve for a,b,c: (25a^2-20a+8)^1/2+(3b^2-6b+19)^1/2+(16c^2-16c+40)^1/2<12

Posted by drole on November 23, 2010 at 11:17 PM via web.

Prove that the series that have the sum of the n terms Sum=4^n -1, is a geometric progression.

Posted by zuzuman on November 23, 2010 at 11:01 PM via web.

Solve for x and y. cos y=(x+x^-1)/2

Posted by javiya on November 23, 2010 at 10:49 PM via web.

In how many ways can 24 be expressed as the sum of two prime numbers ?

Posted by rachnagoyal on November 23, 2010 at 10:29 PM via web.

What is the place value of 3 in 983456 ?

Posted by rachnagoyal on November 23, 2010 at 10:28 PM via web.

Prove that 3<a+b+c<5, for 5a+4b+3c=60?

Posted by majaarmour on November 23, 2010 at 5:57 PM via web.

What are the elements of the set A? A = {x is in Z: x=(6y-7)/(2y+1), y is in N}

Posted by arundel on November 23, 2010 at 5:45 PM via web.

What is the common point of the line y=1+2x and the parabola y=x^2+x+1?

Posted by emilien on November 23, 2010 at 5:35 PM via web.

Prove that the equation 4x^3+3x^2=2x+1 have a solution 0<x<1.

Posted by edithmo on November 23, 2010 at 5:11 PM via web.

Verify the monotony of the function y=x^3-x^2+x+e^x?

Posted by museinspires on November 23, 2010 at 4:59 PM via web.

The earth has a radius of approximately 6400 km. How many radians per second is the earth...

Posted by rosemin on November 23, 2010 at 11:05 AM via web.

How do I solve this? y= 4/x y=3x-1i got as far as making the y's equal to eachother 4/x=3x-1...

Posted by canucksalltheway on November 23, 2010 at 9:42 AM via web.

How do I solve this system?y=x^2 y=1/2x+5

Posted by cindyloo on November 23, 2010 at 9:40 AM via web.

Show that a is a root of x^3+(a+1)x^2+(a-2a^2 )x=2a^2

Posted by smartguy786 on November 23, 2010 at 9:01 AM via web.

Geometry question???????1)Quadrilateral PQRS is a rectangle with diagonals PR and QS.If angle...

Posted by dancenancy on November 23, 2010 at 8:39 AM via web.

Showing 28051-28100 of 33,441

With an eNotes subscription, your questions get answered first by our expert eNotes Educators—teachers who will help you move to the head of the class!

Are you a teacher or graduate student? We're looking for your expertise. Get paid to contribute on eNotes.

pohnpei397

Quiz Taker, (Level 3) Scribe, 500k Points Earner, 1 Million Points Earner, Educator of the Month, Scholar, Expert, Instructor, (Level 3) Distinguished Educator, Dickens, The Bard, Churchill, Einstein

1,057,567 points

Ashley Kannan

Quiz Taker, (Level 1) Scribe, 500k Points Earner, Educator of the Month, Expert, Instructor, Whitman, (Level 3) Distinguished Educator, Dickens, The Bard, Churchill

513,137 points

accessteacher

500k Points Earner, Scholar, Expert, Instructor, Whitman, (Level 3) Distinguished Educator, Poe, Dickens, The Bard, Churchill

502,185 points

mwestwood

Quiz Taker, Quiz Apprentice, Quiz Master, (Level 3) Scribe, Six Year, Seven Year, Educator of the Month, Scholar, Expert, Instructor, Whitman, (Level 3) Distinguished Educator, Poe, Dickens, The Bard, Churchill

459,613 points

justaguide

Educator of the Month, Expert, (Level 2) Distinguished Educator, Einstein, Newton

382,616 points

See all »

Share