Solve the problem.A piece of rectangular sheet metal is 28 inches wide. It is to be made into a rain gutter by turning up equal edges to form parallel sides. Let x represent the length of each of the parallel sides. For what value of x will the area of the cross section be a maximum (and thus maximize the amount of water that the gutter will hold)? If necessary, round to 2 decimal places.
A. 112
B. 56
C. 7
D. 14
Answer: C
Mathematics
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Determine whether the following is a probability model.
A. Yes B. No
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Determine the optimal strategies for R and for C for the game whose payoff matrix is given.
A. 
; 
B. 
; 
C. 
; 
D. 
; 
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Write an expression that gives all solutions to the equation.
?
?
A. 
B. 
C. 
D. 
E. 
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In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.a = 5 yd, b = 5 yd
A. c ? 7.1 yd B. c ? 3.2 yd C. c ? 5.1 yd D. c = 5 yd
Mathematics