Recent Homework Questions About Calculus
Find the slope of the tangent line to the curve √(1x+2y) + √(1xy) = 8.24 at the point (2,8)? I know you have to use implicit differentiation, but the radicals keep making me mess up algebraically. Is the changing the radicals to exponents the fastest way? please ...
Thursday, November 14, 2013 at 9:20am
nevermind I made a mistake it's p(x)=-1x/10 + 465
Wednesday, November 13, 2013 at 4:06pm
Thank you all so much!
Tuesday, November 12, 2013 at 11:35pm
College Level Calculus
number of extra trees per acre --- n number of trees per acre = 20+n yield per tree = 720 - 15n number of oranges = N = (20+n)(720-15n) = 14400 + 420n - 15n^2 N ' = 420 - 30n = 0 for a max of N 30n = 420 n = 14 for the best yield there should be 20+14 or 34 trees per acre
Tuesday, November 12, 2013 at 10:31pm
wikipedia has a simple proof
Tuesday, November 12, 2013 at 9:38pm
assuming you swim along a chord that subtends an angle θ, you swim 2rsin(θ/2) walk πr-rθ total time is thus t = 1/10 r sinθ/2 + 1/50 (πr-rθ) = r/50 (π - θ + 5sin(θ/2)) for minimum time, we need dt/dθ=0 5/2 cos(θ/2) - ...
Tuesday, November 12, 2013 at 4:41pm
let the ladder be y ft above the ground x^2 + y^2 = 15^2 when foot is x ft from wall y^2 = 225-x^2 y = (225-x^2)^(1/2) 2x dx/dt + 2y dy/dt = 0 dy/dt = -2x dx/dt/(2y) = (-x dx/dt)/y = -2x(1/2)x/√(225 - x^2) = -x^2/√(225-x^2)
Monday, November 11, 2013 at 10:30pm
just carry tha too yA crazy kiddo!
Wednesday, October 30, 2013 at 3:54pm
Friday, January 11, 2013 at 8:09pm
Saturday, July 31, 2010 at 10:10pm