A grocery store sells two kinds of citrus fruit: oranges and grapefruit. These arecompeting – when the price of one increases, it causes more of the other to be sold. LetQ(g, r) represent the quantity (in kilograms) of grapefruit sold withgbeing theprice of grapefruit ($/kg) andrbeing the price of oranges ($/kg).Interpret the equation∂Q∂r∣∣∣(3,4)=Qr(3,4) = 6.Use the contextual words or phrases "quantity of grapefruit sold", "dollars", "kilo-grams", etc... in your interpretation.

-14 is the answer

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step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.