. The height of an arrow shot on Neptune can be modelled by the quadratic function h(t) = 2.3 + 50t - 5.57t^2 , where time, t, is in
seconds and height, h(t), is in metres. Use the quadratic formula to
determine when the arrow will hit the surface.

An angle that measures between 90 and 180° is called a(,

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse. a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?