The perimeter of the triangle shown in the following figure is given as 
. Use the properties of real numbers to simplify the expression.
A. 
B. 
C. 
D. 
E. 
Answer: C
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Solve using any appropriate method. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this.x - 5y = 3x = 8 + 5y
A. (3, 5) B. {(x, y)|x = 8 + 5y} C. No solution D. {(x, y)|x - 5y = 3}
Use reference angles to find the exact value of the expression.sin 
A. - 
B. 
C. -1
D. - 
Solve the problem.The profit function for a product is given by P(x) = -0.4x3 + 66x2 - 2120x - 48,000 dollars, where x is the number of units produced and sold. Determine the levels of production and sale that give break-even.
A. 120 units B. 80 or 100 units C. 100 units D. 90 or 120 units
Identify the equation without completing the square.3y2 - 4x - 4y = 0
A. hyperbola B. circle C. ellipse D. parabola