Perform the indicated operation and simplify. Assume all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Identify the number as prime, composite, or unit.198
A. Unit B. Composite C. Prime
Mathematics
In the following sequence of regular pentagons, each toothpick represents one unit. Determine the perimeter if we arrange n such regular pentagons in a row.
Mathematics
Find a value for a so that the equation models the data.y = ax
A. 
B. 
C. -3
D. 3
Mathematics
Graph the function f by starting with the graph of y = x2 and using transformations (shifting, compressing, stretching, and/or reflection).f(x) = 
x2 + 
x - 1 
A. 
B. 
C. 
D. 
Mathematics