five hundred feet of fencing is available for a rectangular pasture alongside a river, the river serving as one side of the rectangle (so only three sides require fencing). find the dimensions yielding the greatest area



Answer :

The dimensions yielding the greatest area (125*250).


What is a dimensions?
The minimal number of coordinates required to specify any point within a dimensional vector space (or object) is known as the dimension in physics and mathematics. Because only one coordinate is required to specify a point on a line, such as the point at 5 on the a number line, a line is said to have one dimension (1D). Because two coordinates are required to specify a point on a surface, such as the perimeter of a sphere or cylinder, it is referred to as having a dimension of two (2D). For instance, a point on the a sphere's surface requires both a latitude and a longitude to be located. A two-dimensional space just on plane is referred to as a Euclidean space.

The perimeter is 2a+b = 500

                             b= 500-2a

Max are is A = ab

A= a(500-2a)

 = 500a - 2[tex]a^{2}[/tex]

for max value

a = -y/2x

  = -500/2(-2)

= 125 feet

and b = 250 feet

Greatest area (125*250) = 31250 feet²

Hence dimensions yielding the greatest area (125*250).

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