Q2. A cycle track has two identical semi-circular ends and two straight sides as shown.
Not drawn accurately
100 m
40 m
A cyclist completes one lap.
Her average speed is 18 m/s
Her target time to complete one lap is 30 seconds.
Does she beat her target?
You must show your working.

If u give wrong answer ill report u : )

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.