Recent Homework Questions About Calculus
(2 5 -3) (x y z)T = -1 The transpose is for readability, since it has to be a column vector.
Friday, December 6, 2013 at 1:28am
(a) 4log5 = log625 (b) x = ln y (c) 10^x = -3
Friday, December 6, 2013 at 1:25am
Math - Calculus I
Draw a side view of the situation (The cone will look like an isosceles triangle with a rectangle (the cylinder) sitting on its base and touching the sides) let the radius of the cylinder be r and let the height of the cylinder be h Look at the small right-angled triangle at ...
Thursday, December 5, 2013 at 9:36pm
In the interval (0 is less than or equal to x which is less than or equal to 5), the graphs of y=cos(2x) and y=sin(3x) intersect four times. Let A, B, C, and D be the x-coordinates of these points so that 0<A<B<C<D<5. Which of the definite integrals below ...
Thursday, December 5, 2013 at 8:05pm
If you are asking what it is, consider this: u=INT (x-c)^n * f(x) dx is the definition of the nth moment about the mean c. so in math, u=INT xf(x)dx is the first moment about the y axis (xo=c=0). That is the definition, if that is what you were looking for. To calculate it, as...
Thursday, December 5, 2013 at 6:40pm
Thursday, December 5, 2013 at 5:05pm
if the squares are of size x, then the volume is v = x(20-2x)^2 = 4x(10-x)^2 Without benefit of calculus, you still know the general shape of the curve. Since we want integer values, just start checking. x v 1 324 2 512 3 588 4 576 Now v is decreasing, so keeping all values ...
Thursday, December 5, 2013 at 1:13pm
C: 2a+b=2d H: 6a+2c=6d O: 2b+c=d now, 6a+3b=6d 6a+2c=6d so, 3b=2c 6a+3b=6d 12b+9b=6d so, a=3b=2c So, if we choose a=6 because 6=LCM(2,3) a=6 b=2 c=3 d=7 and we have 6C2H6 + 2CO2 + 3H2O → 7C2H5OH
Wednesday, December 4, 2013 at 9:25pm
the shape you will get is half a torus. A torus is a donut or bagel shaped solid. We have cut ours in half (to make a tasty cream-cheese bagel) the y-intercepts: 0 = y(9-y) so y = 0 or y = 9 , You had that so we need the radius of the outer and the inner rings: y^2 - 9y = -x y...
Wednesday, December 4, 2013 at 9:18pm
By my 18 years of studying the art of Calculus... i can say that the answer is unquestionably 69.
Tuesday, April 10, 2012 at 4:41pm