A scale drawing is to be made of the floor of a rectangular room whose dimensions are 72 feet by 40 feet. The scale to be used is 1 inch : 8 feet. What will the perimeter of the scale drawing be in inches?

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A: given f(x)=x3-9x+1 in the interval [2,4] n=5  f(2)=x3-9x+1=23-9(2)+1=8-18+1=-9<0 f(4)=x3-9x+1=43-...

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Q: 5x+16y+10z = 45 3x+2y+7z =17 5x+y+3z=9

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A: This is a problem of Abstract Algebra.

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.