Atemperature record in antarctica was -120.the temperature recorded in the sahara desert was 129.how many degrees warmer is 129 than -120

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 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)

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2