3. A stunt driver on a motorcycle speeds off a 50 meter tall building. How fast must he be traveling to land on an airbag that is 90 meters away from the base of the
building?

The rows and columns of lattice points in a three-by-three square array are evenly spaced one unit apart. how many distinct triangles with at least one side of length 2 units can be drawn using three lattice points for the vertices?

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2