Use the discriminant to describe the roots of each equation. then select the best description. 2x2 + 7x + 6 = 0 double root real and rational roots real and irrational roots non-real roots

Which expression gives the area of the triangle shown below

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 of the following circles have their centers in the third quadrant?