Name: Anonymous 2008-04-23 15:39
Q:
A tank is leaking at a velocity of (6.5 - 0.16x^2) dm^3/h where x is time in hours from 12.00 when it was 20 dm^3 in the tank.
a) How much is left 15.00?
b) When is the tank empty?
A:
a. Integral(from 0 to 3)[6.5-0.16x^2] = F(3) - F(0) = 6.5 * 3 - 0.16 * 3^3 / 3 - 0 ~= 18
Answer: ~ 2 dm^3
b. Neeed haalp!
A tank is leaking at a velocity of (6.5 - 0.16x^2) dm^3/h where x is time in hours from 12.00 when it was 20 dm^3 in the tank.
a) How much is left 15.00?
b) When is the tank empty?
A:
a. Integral(from 0 to 3)[6.5-0.16x^2] = F(3) - F(0) = 6.5 * 3 - 0.16 * 3^3 / 3 - 0 ~= 18
Answer: ~ 2 dm^3
b. Neeed haalp!