<PRE><B>Question 874981</B>
1.find two numbers whose sum is 13 and whose product is 40
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Try pairs of factors of 40.
1*40  NG
2*20 NG
etc
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2.the area of a rectangle is 94sq. units and its perimeter is 38units.
find the length and width of the rectangle.
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P = 2L + 2W = 38
L + W = 19
L*W = 94
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L = 19 - W
Sub for L
(19-W)*W = 94
W^2 - 19W + 94 = 0
*[invoke solve_quadratic_equation 1,-19,94]
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No real number solution.
The max area of a rectangle of given perimeter is a square.
For P = 38, side length = 9.5
Area = 9.5^2 = 90.25 sq units
94 is not possible.</PRE>