Represent the real-word quantity with a signed number.The average height of the Appalachian Plateau is 478 feet below sea level.
A. 478
B. -478
Answer: B
Mathematics
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Solve the problem.The position of a body moving on a coordinate line is given by 
with s in meters and t in seconds. When, if ever, during the interval 
does the body change direction?
A. t = 3.5 sec B. t = 7 sec C. no change in direction D. t = 14 sec
Mathematics
Solve for y.w = 
A. y = 
B. y = 
C. y = 
D. y = 
Mathematics
Find the missing measurement in the figure.
a = 1.3 m b = 1.3 m c = 5.7 m
A. z = 5.7 m B. z = 3.2 m C. z = 4.1 m D. z = 3.1 m
Mathematics
Graph the set of numbers on a number line.
A. 
B. 
C. 
D. 
Mathematics