19. What was done to overcome the problem of the MSL landing? O More airbags were used
O A pulley system was created
O A parachute was used
0 A tether and roper were used

HELP PLS ASAP

What is the solution of sqrt x+2-15=-3

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.

What is the absolute value of the complex number -4-sqrt2i