A roofing contractor is fabricating gutters from 
-inch aluminum sheeting. The contractor plans to use an aluminum siding folding press to create the gutter by creasing equal lengths for the sidewalls (see figure).
?
where 
Let x represent the height of the sidewall of the gutter. Write a function A that represents the
cross-sectional area of the gutter.
?
A. 
B. 
C. 
D. 
E. 
Answer: A
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Describe the given set of points with a single equation or with a pair of equations.The circle in which the plane through the point (10, -9, -9) perpendicular to the x-axis meets the sphere of radius 26 centered at the origin.
A. x2 + y2 + z2 = 576 and y = 10 B. x2 + y 2 + z2 = 476 and y = 10 C. x2 + y2 + z2 = 676 and x = 10 D. x2 + y2 + z2 = 676 and z = 10
Write the statement in symbolic form.The set of irrational numbers is a subset of the real numbers.
A. I ? R B. Q ? R C. I ? R D. I ? W
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Solve the problem.How many ways can 6 people be chosen and arranged in a straight line if there are 8 people to choose from?
A. 20,160 B. 40,320 C. 48 D. 720