Answer the question.What property of real numbers justifies the method of multiplying by the LCD of the parts? Why?
What will be an ideal response?
Answers will vary.
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Solve the problem.The arch beneath a bridge is semi-elliptical, a one-way roadway passes under the arch. The width of the roadway is 34 feet and the height of the arch over the center of the roadway is 14 feet. Two trucks plan to use this road. They are both 8 feet wide. Truck 1 has an overall height of 
and Truck 2 has an overall height of 
. Draw a rough sketch of the situation and determine which of the trucks can pass under the bridge.
A. Truck 2 can pass under the bridge, but Truck 1 cannot. B. Both Truck 1 and Truck 2 can pass under the bridge. C. Truck 1 can pass under the bridge, but Truck 2 cannot. D. Neither Truck 1 nor Truck 2 can pass under the bridge.
Identify f as being linear, quadratic, or neither. If f is quadratic, identify the leading coefficient.f(x) = 
A. Linear B. Quadratic; 2 C. Quadratic; 6 D. Neither
Multiply.
A. 612,248 B. 15,080 C. 69,368 D. 610,740
Solve the system of equations.8x + 2y + 5z = 12-4x + y -10z = -104x - 2y + 20z = 17
A. 
B. 
C. 
D. ?