Solve.An engineer uses the expression 
to describe the width of a rectangular steel plate she is designing for a machine. The expression 
describes the length. Write a rational expression for the perimeter of the steel plate.
A. 
B. 
+ 
C. 
+ 
D. 
+ 
Answer: B
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Use inequality notation and interval notation to describe the set. ? The dog's weight W is more than 63 pounds. ?
A. Inequality : W> 63Interval : (63, ?) B. Inequality : W ? 63Interval : (63, ?) C. Inequality : W ? 63Interval : (63, ?) D. Inequality : W < 63Interval : (63, ?) E. Inequality : W = 63Interval : (63, ?)
An airplane leaves New York and flies south at a constant speed to Miami, where it lands and takes on new passengers. It then makes the return flight at a constant speed. Make a graph that shows distance north of Miami over the period of the round-trip flight. Be sure to label your graph appropriately. ? ? ? .
What will be an ideal response?
Use a calculator to find the function value to four decimal places.cos 33.2°
A. 0.6544 B. 0.8368 C. 0.5476 D. 0.2117
Solve.The amount of paint needed to cover the walls of a room varies jointly as the perimeter of the room and the height of the wall. If a room with a perimeter of 40 feet and 
walls requires 
of paint, find the amount of paint needed to cover the walls of a room with a perimeter of 55 feet and 10-foot walls.
A. 5.5 quarts B. 11 quarts C. 55 quarts D. 550 quarts