Perform the indicated operation.49 cm + 9.4 dm (in centimeters)
A. 58.4 cm
B. 143 cm
C. 14.3 cm
D. 499.4 cm
Answer: B
Mathematics
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Solve the problem.The floor plan of a building is shown in the figure below. Starting outside, is it possible to walk through each door exactly once, and end up back outside? Justify your answer.
What will be an ideal response?
Mathematics
Convert the equation to the standard form for an ellipse by completing the square.4x2 + 25y2 - 8x + 150y + 129 = 0
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Find an equation of variation for the given situation.y varies jointly as x and w and inversely as z, and y = 
when x = 2, w = 4, and z = 16.
A. y = 
B. y = 4xwz
C. y = 
D. y = 
Mathematics
Provide an appropriate response.A proper fraction has the form 
. What is the largest possible number that x can be?
A. 21 B. 20 C. 22 D. 10.5
Mathematics