A teacher uses a stem-and-leaf plot to record the typing speeds of her students, in words per minute.

Drag values to the table to show the median and mode of the data she recorded.

mental cunning

explanation:

he is often referred to as a man of twists and turns

answer:

c. the third graph

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4