What is the solution to the system of equations below? y = negative 2 x minus 6 and 2 y = negative 4 x minus 12 no solution infinitely many solutions (–3, 0) (3, –12) please help

41/17 as a decimal rounded to the nearest hundredth

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

4+(2+x) can you me solve this problem