Adolphin is at the surface of the water and then descends to a depth of 4 1⁄2 feet. then the dolphin swims down another 2 3⁄4 feet. what is the location of the dolphin relative to the surface of the water? -4 1⁄2 - -4 1⁄2 + =

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

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.

Solve for n? [tex]z = \frac{3}{4} mn[/tex]