Atriangle is placed in a semicircle with a radius of 8 cm find the area of the shaded region. use the value 3.14 for ? , and do not round your answer. be sure to include the correct unit in your answer.

The area of a rectangle is 54x^9y^8 square yards.if the length of the rectangle is 6x^3y^4 yards,which expression represents the width of the rectangle in yards

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth

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)