# (a) Express the area A of the rectangle as a function ofwhere x is the length of the rectangle.(b) For what value of x is the area largest?(c) What is the maximum area?45. Enclosing the Most Area with a Fence A farmer with 4000meters of fencing wants to enclose a rectangular plot thatborders on a river. If the farmer does not fence the side alongthe river, what is the largest area that can be enclosed? (Seethe figure.)et belawd dd48XXX4000-2x46. Enclosing the Most Area with a Fence A farmer with 2000meters of fencing wants to enclose a rectangular plot thatborders on a straight highway. If the farmer does not fencethe side along the highway, what is the largest area that canbe enclosed?47. Analyzing the Motion of a Projectile A projectile is firedfrom a cliff 200 feet above the water at an inclination of 45°to the horizontal, with a muzzle velocity of 50 feet per sec-ond. The height h of the projectile above the water is given by

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I need help with number 46

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Step 1

Let the field has one side =x and other side =y

So i...

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