Lucas wants to prove that the base angles of any isosceles triangle are congruent. he has drawn ∆def as shown. which choice shows a segment that does not subdivide ∆def into two congruent triangles?

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

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)

What is the circumference of the pie