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Simplify (x^2-121)/(x^3+11x^2-x-11).

Posted by cartoffried on September 25, 2010 at 9:51 PM via web.

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Given that f(x) = x + 11 verify if the line x + 11 passes through (0,11).

Posted by deuxtoi on September 25, 2010 at 9:03 PM via web.

Evaluate the indefinite integral of y= 1/(x^2 - 11)

Posted by realcomplexnr on September 25, 2010 at 8:53 PM via web.

Solve for x (3x)^4 - 81 = 0 .

Posted by nena1993 on September 25, 2010 at 8:44 PM via web.

Prove that 7/3=< definite integral of f(x)=<5 when x=0 to x=2. f(x)=(x^4+5)/(x^4+2)

Posted by sirserie on September 25, 2010 at 8:27 PM via web.

Can an equilateral triangle also be isosceles?

Posted by estanbuen on September 25, 2010 at 3:27 PM via web.

If the probability of two events is ¾ and 8/9, what is the probability of both happening in 300...

Posted by jazzmaster on September 25, 2010 at 3:23 PM via web.

Please let me know formulas of zero and negative exponents.

Posted by tealseal on September 25, 2010 at 12:28 PM via web.

If the roots of the quadratic equation ax^2+ bx+2 are complex numbers what can be said about a...

Posted by thomas666 on September 25, 2010 at 11:50 AM via web.

What is a and b if ax+by=0 passes through the points (9,8) and (8,9)

Posted by lynnf999 on September 25, 2010 at 11:46 AM via web.

What is the equation of the perpendicular bisector drawn between the points joining (4,2) and (4,...

Posted by joselime on September 25, 2010 at 11:40 AM via web.

In how many different ways can 10 children sit in a circle?

Posted by jordana419 on September 25, 2010 at 10:12 AM via web.

How can I find the area of a triangle given the coordinates of its corners ad (x1,y1),(x2,y2) and...

Posted by michdon19 on September 25, 2010 at 10:07 AM via web.

Solve simultaneously: 3 to the power p = 9(27) to the power q and log 7 to the base 2 - , and...

Posted by publicspeaker on September 25, 2010 at 8:58 AM via web.

Work out 3/5+0.12+6% of 10

Posted by captainlok2 on September 24, 2010 at 11:02 PM via web.

1 educator answer.

after 15 days 90% of a radioactive materialhas decayed. what is the half life of the material.

Posted by islnds on September 24, 2010 at 2:41 PM via web.

What is the intersection of y = 3x^2+2x +8 and y = 4x^2+5x+8?

Posted by aplewis on September 24, 2010 at 2:38 PM via web.

If a number in octal is 6423, what is it in decimal.

Posted by torrip996 on September 24, 2010 at 2:25 PM via web.

The average of 2 numbers is 12 and their product is 56. What is the average of their squares?

Posted by tonyah995 on September 24, 2010 at 2:23 PM via web.

What is the standard deviation of S={ 4,7,9,4,3,2,1,4,6,7}

Posted by peterf299 on September 24, 2010 at 2:22 PM via web.

How many 5-digit numbers are there that include the digit 5 and exclude the digit 8? Explain your...

Posted by chrisbing on September 24, 2010 at 1:55 PM via web.

If 4x+ay=0, 5x+2y=0, bx+cy=0 and dx+4y=0 are the sides of a square find a, b, c and d.

Posted by freds777 on September 24, 2010 at 12:08 PM via web.

Using calculus prove the relation between distance, time, speed and acceleration

Posted by paulinemurphy on September 24, 2010 at 12:06 PM via web.

What is second derivative of sin [( cos 3x+2)]?

Posted by amy35 on September 24, 2010 at 12:05 PM via web.

Using calculus prove that the square has the greatest area for the same perimeter when a...

Posted by jazzmaster on September 24, 2010 at 11:54 AM via web.

What is the equation of the line tangential to the curve formed by a quadratic equation?

Posted by cattleya on September 24, 2010 at 11:51 AM via web.

Is -5 a rational or irrational?

Posted by tealseal on September 24, 2010 at 11:07 AM via web.

Fnd the roots: (2x)^4=18

Posted by islnds on September 24, 2010 at 11:06 AM via web.

What multiplied by what gives you 1,050?

Posted by pay2 on September 24, 2010 at 9:36 AM via web.

2 educator answers.

What is the formula if the product of the digits is 36 and the number is divisible by 7. Can't...

Posted by joannaguerrero on September 24, 2010 at 8:42 AM via web.

F(x)= ( 1 - 2/x) ^x Use a table of values of f(x) to estimate the limit. (Round the answer to...

Posted by tgl223 on September 24, 2010 at 5:47 AM via web.

Find The Quadratic Function That Has The Vertex (4,5) and Whose Graph Passes Through The Point...

Posted by sincerelya on September 24, 2010 at 1:56 AM via web.

Trigonometry Problems(a) If Tan A = a/b, prove that "b cos 2A + a sin 2A = b" (b) If tan x =...

Posted by chetan3618 on September 24, 2010 at 1:47 AM via web.

The curve y= (m+1)*x^2 + mx + 3 and the line y = x + 1 are intercepting in two distinct points ....

Posted by fakeyelid on September 24, 2010 at 12:59 AM via web.

Given that cosa=-0.25 and a is in the interval (180,270) evaluate the sum sina+cosa+sin2a+cos2a

Posted by leeaeel on September 24, 2010 at 12:52 AM via web.

Differentiate the function f(x) = ln sqrt ( 17x^2 - cosx), using the chain rule.

Posted by fromici on September 24, 2010 at 12:39 AM via web.

Evaluate the indefinite integral of f(x)=1/(2x^2-4) .

Posted by gudeapp on September 24, 2010 at 12:30 AM via web.

Determine values of x for x^2<4x+12

Posted by bibiloi on September 24, 2010 at 12:23 AM via web.

Prove that if the probability P {A/B} = P {A}, then A and B must be independent?

Posted by bobbysunil on September 23, 2010 at 3:31 PM via web.

Universal Set={whole numbers} A={multiples of 5} B={multiples of 3} C={multiples of 10} Write...

Posted by sandali on September 23, 2010 at 3:00 PM via web.

Who discovered complex numbers?

Posted by rbeaker91 on September 23, 2010 at 12:32 PM via web.

What is the value of the derivative of cosec ( x^2+3) at x equal to 2

Posted by thomas666 on September 23, 2010 at 12:30 PM via web.

Find the area under the standard normal curve between +1.50 standard deviations and +2.50standard...

Posted by smithasantosh on September 23, 2010 at 12:07 PM via web.

Solve for x and y. f’(x)= 7x+ 5 , x+3y =6

Posted by estanbuen on September 23, 2010 at 11:46 AM via web.

If the perimeter of a triangle is equal to its area and one of the sides is 6, what are the...

Posted by jazzmaster on September 23, 2010 at 11:38 AM via web.

What are the sides of a right angled isosceles triangle?

Posted by stringy on September 23, 2010 at 11:35 AM via web.

What is the equation of a circle with a radius equal to 4 and the centre (4, 6)?

Posted by kbabe199076 on September 23, 2010 at 10:55 AM via web.

Can two different quadratic equations have the same roots?

Posted by michdon19 on September 23, 2010 at 10:44 AM via web.

What is the differential of sin 2x/ cos x

Posted by tonyah995 on September 22, 2010 at 12:48 PM via web.

Write a system of inequalities to describe the shaded figure in the picture here:...

Posted by boscow on September 22, 2010 at 10:56 AM via web.

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