Work out the surface area of this cylinder radius 2cm and height 4cm pls help​

Which expression is equivalent to 5r6141 2r+st6

1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]