justaguide
justaguide
Male
November 8, 2010
Teacher
College - Senior
Chemistry, Mathematics, Physics
My interests include the stock market, architecture and modern science.
Biography
I have formally taught math, physics and chemistry.
New Activity for justaguide
Answered a Question in Math
At the x-intercepts of the curve y = -x^2 + 3x + 18, the value of y = 0. So we get...
Answered a Question in Math
We have to find k for x^2 + kx - 6 = (x-2)(x+3) x^2 + kx - 6 = (x-2)(x+3) =>...
Answered a Question in Math
We have to solve 2^(3x - 1) = 16 for x. 2^(3x - 1) = 16 => 2^(3x - 1) =...
Answered a Question in Math
The solutions of f(x) = 0 are -2, 0 and 3. So we can write f(x) = (x + 2)( x -...
Answered a Question in Math
We have log(x) (1/8) = -3/2. We have to determine x. log(x) (1/8) = -3/2 =>...
Answered a Question in Math
The sum of the first and third of three consecutive odd numbers is 131 less than 3...
Answered a Question in Math
The sum of an odd number and twice its consecutive is equal to 3757. Let the...
Answered a Question in Math
The sum of three consecutive even number is 84. Let the number be 2*n , 2*n + 2...
Answered a Question in Math
The sum of three consecutive numbers is 366. Let the numbers be n , n + 1 and n +...
Answered a Question in Math
The sum of two consecutive numbers s given as 129. Let the numbers be n and n + 1...
Answered a Question in Science
The ideal gas law gives the relation P*V = n*R*T, where P is the pressure of the...
Answered a Question in Math
We have the function f(x) = (1/2)*x^2 - x^(1/2) - 3*x^0 To find f(4), we...
Answered a Question in Math
We need to find the sum S = 1 / (cos 15)^2 + 1 / ( sin 15)^2. I assume 15 is in...
Answered a Question in Math
In the xz plane, the value of y is y = 0. We have to find the line of intersection...
Answered a Question in Math
You are only allowed to ask one question at a time. I am responding to your first...
Answered a Question in Math
To find the area between the curves, we first need to determine their points of...
Answered a Question in Math
At the stationary points of any function f the derivative f' = 0. Here...
Answered a Question in Science
According to Avogadro's Law, equal volumes of different gases at the same...
Answered a Question in Math
The required ploynomial has a highest degree of 3. When it is divided by (x + 2)...
Answered a Question in Math
We have to find the integral of y = (sin x)^3 (sin x)^3 = (sin x)^2 * sin x...
Answered a Question in Math
We have f(x) = (1/2)x^2-x^(1/2)-3x f(4) = (1/2)*4^2 - 4^(1/2) - 3*4 =>...
Answered a Question in Calculus
We need to find the value of lim x--> pi/4 [sin x/(1- 2*(sin x)^2) - cos...
Answered a Question in Math
We have to find lim n-->inf.[2^2+4^2+6^2+...+(2n-2)^2]/n^3...
Answered a Question in eNotes Editors Group
Oops, didn't see this post. I'm been trying to do the same for a while using the...
Answered a Question in eNotes Editors Group
40%? That's truly a lot. The tax rates in different countries vary, and I guess...
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