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

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

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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.

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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.

2 educator answers.

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.

What are the coordinates of a relative maximum point for y= x^3 + 6x^2 -8x +5 to two decimal...

Posted by vickyvan on November 23, 2010 at 6:01 AM via web.

A particle moves along the line y = 5x - 2 in such a way that its x-coordinate at time t is x =...

Posted by cruth8646 on November 23, 2010 at 5:13 AM via web.

3 educator answers.

Find the curve whose slope at the point (x, y) is 3x^2 if the curve is also required to pass...

Posted by cesther86 on November 23, 2010 at 4:44 AM via web.

The product of two positive real numbers x and y is 20. Find the minimum possible value of their...

Posted by shizuo on November 23, 2010 at 4:39 AM via web.

Evaluate the sum 1/2+1/6+...+1/k(k+1)

Posted by landishigh on November 23, 2010 at 2:28 AM via web.

Apply matrix to solve simultaneous equations x + y - 5 = 0 2x - y -1 = 0

Posted by afrokaa on November 23, 2010 at 2:10 AM via web.

Define "universal set" with examples.

Posted by rishabh050996 on November 23, 2010 at 2:09 AM via web.

A bank pays interest at the rate of 11% on $6000 deposited in an account. After how many years...

Posted by fayas on November 23, 2010 at 2:06 AM via web.

The population of an island increases by 10% each year. After how many years will the original...

Posted by sabahkhan on November 23, 2010 at 2:03 AM via web.

Find the roots of the equation 2*1156^x-1=(2*17)^x.

Posted by errgonomix on November 23, 2010 at 2:02 AM via web.

Convert from degrees to radians : 30;131;170.

Posted by fryvonne on November 23, 2010 at 1:53 AM via web.

Determine the point with equal coordinates on the line y= 0.5x -0.5

Posted by sapon on November 23, 2010 at 1:44 AM via web.

Find the indefinite integral of y=1/(x^2+4x+4)?

Posted by essesy on November 23, 2010 at 1:39 AM via web.

What is the linear function f if the graph of f passes through the point (1;3) and (2;1) ?

Posted by catbyshe on November 23, 2010 at 1:25 AM via web.

Find n if m=3 and the arithmetic mean of f(m) and f(n) is 15,5 for f(x)=x/3 + 10.

Posted by sodelete on November 23, 2010 at 1:17 AM via web.

Solve the simultaneous equations - 7x/2 + y= - 17/2 y - 14x/9= - 24/9

Posted by fortunee on November 23, 2010 at 1:11 AM via web.

Find the extreme point of f(x)=3-3x^2.

Posted by starshippiy on November 23, 2010 at 12:51 AM via web.

What is the equation of the line that passes through the point (-1;1) and (0;3)?

Posted by solvedphyz on November 23, 2010 at 12:37 AM via web.

Find equations for the tangents to the curve y = x^2 at the points (-1/2 , 1/4) and (1,1).

Posted by paul1234 on November 23, 2010 at 12:35 AM via web.

What is |z| if i - iz = 2 ?

Posted by lessoflot on November 23, 2010 at 12:29 AM via web.

Find dy/dx as a function of x for y= x^3*(x+1)/(3x-2)^4

Posted by electrika on November 23, 2010 at 12:18 AM via web.

Evaluate sum (3n + 2) for n = 0 to n = 100 .

Posted by kamused on November 23, 2010 at 12:07 AM via web.

Find the solution in the simplest form lgx/(1-lg2) = 2.

Posted by for3cast on November 22, 2010 at 11:52 PM via web.

Find the values of x that satisfy the inequality |(3x + 1)/2| < 1.

Posted by rogerwalt on November 22, 2010 at 11:47 PM via web.

Given that x=3 is a solution of x^3-x^2-8x+6=0 find all the other solutions of this equation.

Posted by bibiloi on November 22, 2010 at 11:40 PM via web.

Solve the equation: |2x – 3| = 7.

Posted by rbeaker91 on November 22, 2010 at 10:37 PM via web.

For the functions f(x) = x^2 and g(x) = (x-7), are f (g(x)) = g (f(x)). Also, what is g (f (2))?

Posted by sweetdreams365 on November 22, 2010 at 10:17 PM via web.

Find the domain and range of the following: y = x^2 , y = sqrt(1 – x^2), y = 1/x, y = sqrt(x) ,...

Posted by susan1988 on November 22, 2010 at 10:05 PM via web.

If log 9 = 2, how to find the value of log 27

Posted by schooldump on November 22, 2010 at 9:42 PM via web.

What is the value of a and b, given that 4+a, 8, 10b and a+2b are terms of AP

Posted by lxsptter on November 22, 2010 at 9:29 PM via web.

How do I write sigma notation for a sequence and then find the partial sum?I'm given the...

Posted by avenged113 on November 22, 2010 at 12:54 PM via web.

ax^2 + bx + c = ( x-2)(x+5) find the values of a, b and c:

Posted by jude69 on November 22, 2010 at 12:32 PM via web.

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