Two new companies are making school supplies. Company W has found the following function to represent the number of supplies they sell, W(x) = 28x2, where x is the number of months supplies are sold. Company Q has found the function for their supplies to be Q(x) = 3.5x. Use this information to answer the following questions. Which company sells more supplies after 2 months?

A) Company W
B) Company Q

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

the answer to your question is minor arc.