A sniper providing cover for the ground team during military operation can shoot in all directions from a fixed point O. If the killing range of his gun is 400m, the fatal injury range is 600m and the mild injury range is 800m. (I) Calculate the areas the enemy troop must avoid in order not to get killed or fairly injured by the sniper's gunshot.

​

What value of x is in the solution set of 4x – 12 s 16 + 8x?

Answer asap! show all work! find the number of complex roots, the possible number of real roots and the possible rational roots of the polynomial function. then, solve for all roots. x^3 + 2x^2 + 3x + 6 = 0

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.