Evaluate cos0 if sin0= sqrt(5)/3

a. 9/5
b. 2/3
c. 5/9
d. 3/2

What are the sotions to the quadratic equation 9x^2=4

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3