The Inka capital was

The medieval university

An open-top box is to be constructed so that its base is three times as long as its width.  Its volume is to be 3000 cm3.  Find the dimensions that will minimize the amount of cardboard needed.

If h(x) = xsin x, then h'(x) =

If f(x) = sin 3x + cos 2x, then f'(x) =

The equation 2x + 5y = 9 can represent

On the interval 0 ≤ x ≤ 3, the function f(x) = x2 – 8x + 16:

Which statement is never true for two planes?

Two forces of 30 N and 50 N, have an angle of 43o between them.  Determine the magnitude and direction of the resultant vector.

An airplane heads north 20o east with a velocity of 350 km/h and encounters a wind of 50 km/h from north west.  Determine the resultant velocity of the airplane.