What is the shape formed by a vertical cross-section through the vertex of the pyramid in the image?
O Circle
O Triangle
O Rectangle
O Trapezoid

Sorry about the first time

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)

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x