Three semicircles are placed in a rectangle, as shown below. The width of the rectangle is 11m. Find the area of the shaded region. Use the value 3.14 for pi , and do not round your answer.

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

Ten times the square of a non-zero number is eqaul to ninety times the number

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?