p width /U.„, in feet, at various points .X.„ along the fairway of a Of =use changes as shown in the...

Question

p width /U.„, in feet, at various points .X.„ along the fairway of a Of =use changes as shown in the figure below. The vdues of /U.„ and .X.„ are given in the table below the I igurt3.
•
(C. on th e figure fore larger vers.' n—note that you mayhem to wirdow you,' to get rive pi.m.)
The values of X.„ and /U.„ are
= XXXXXXXXXXx„ = XXXXXXXXXX XXXXXXXXXX1100 ur„ = XXXXXXXXXX XXXXXXXXXX
If one pound of fertilizer covers 250 square feet, find a reasonable estimate for the amount of fertilizer needed fertilize the fairway.
amount of fertilize, pounds

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Robert · Accepted Answer

Sol
The width of interval [a, b] = b-a, is divided into n strips, so the width of each strip is 
b a
x
n

   
These strips divide the interval [a,b] , into n sub-intervals  
0 1 1 2 2 3 n 1 n[x , x ],[x , x ],[x , x ]...[x , x ]    where  0 nx a and x b   
The right –hand endpoint of the sub-interval are 
1 2 3x a x , x a 2 x ,

p width /U.„, in feet, at various points .X.„ along the fairway of a Of =use changes as shown in the figure below. The vdues of /U.„ and .X.„ are given in the table below the I igurt3. • (C. on th e...

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