R(q)=−0.31(q−260) 2
+9,500R, left parenthesis, q, right parenthesis, equals, minus, 0, point, 31, left parenthesis, q, minus, 260, right parenthesis, squared, plus, 9, comma, 500
A shoe manufacturer determines that its monthly revenue, R(q)R(q)R, left parenthesis, q, right parenthesis, in dollars, is given by the function defined above, where qqq is the number of pairs of shoes sold each month. What is the maximum value of the company's monthly revenue in dollars?

i think its a and d

step-by-step explanation:

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

idk

step-by-step explanation: