fareha
Popular questions and responses by fareha
calculus
You are standing at the edge of a slow moving river which is one mile wide and wish to return to your campground on the opposite side of the river. You can swim at 2 mph and walk 3 mph. You must first swim across the river to any point on the opposite
asked on December 13, 2011 
calculus
1. Given the curve a. Find an expression for the slope of the curve at any point (x, y) on the curve. b. Write an equation for the line tangent to the curve at the point (2, 1) c. Find the coordinates of all other points on this curve with slope equal to
asked on December 3, 2011 
calculus
if a farmer has 100 feet of fence and wants to make a rectangular pigpen, one side of which is along existing straight fence.What dimensions should be used in order to maximize the area of the pen?
asked on December 12, 2011 
calculus
5. A particle moves along the xaxis in such a way that its position at time t is given by x=3t^416t^3+24t^2 for 5 ≤ t ≤ 5. a. Determine the velocity and acceleration of the particle at time t. b. At what values of t is the particle at rest? c. At
asked on December 5, 2011 
calculus
1. A rectangle has a constant area of 200 square meters and its length L is increasing at the rate of 4 meters per second. a. Find the width W at the instant the width is decreasing at the rate of .4 meters per second. b. At what rate is the diagonal D of
asked on December 4, 2011 
calculus
Construct a window in the shape of a semicircle over a rectangle.If the distance around the outside of the window is 12 feet.What dimensions will result in the rectangle having the largest possible area? We need to find Amax I know the circmfrence is 12
asked on December 13, 2011 
calculus
1. Let y = f(x) be the continuous function that satisfies the equation x^45x^2y^2+4y^4=0 and whose graph contains the points (2, 1) and (2, 2). Let l be the line tangent to the graph of f at x = 2. a. Find an expression for y’ b. Write an equation for
asked on December 4, 2011 
calculus
1. A rectangle has a constant area of 200 square meters and its length L is increasing at the rate of 4 meters per second. a. Find the width W at the instant the width is decreasing at the rate of .4 meters per second. b. At what rate is the diagonal D of
asked on December 4, 2011 
calculus
How do you do differntials?
asked on December 14, 2011 
calculus
4. Given the function f defined by f(x) = cos2x for π≤ x ≤π a. Find the xintercepts of the graph of f. b. Find the x and y coordinates of all relative maximum points of f. Justify your answer. c. Find the intervals on which the graph of f is
asked on December 5, 2011 
calculus
6. A trough is in the shape of a triangular prism. It is 5 feet long and its vertical cross sections are isosceles triangles with base 2 feet and height 3 feet. Water is being siphoned out of the trough at the rate of 2 cubic feet per minute. At any time
asked on December 4, 2011 
calculus
1. Let y = f(x) be the continuous function that satisfies the equation x^45x^2y^2+4y^4=0 and whose graph contains the points (2, 1) and (2, 2). Let l be the line tangent to the graph of f at x = 2. a. Find an expression for y’ b. Write an equation for
asked on December 3, 2011

calculus
thanks!!
posted on December 13, 2011 
calculus
so I know you will use T=dr/rr +dL/rL
posted on December 13, 2011 
calculus
sorry here's the equation: x+xy+2y^2=6
posted on December 3, 2011