Perform the operation indicated. Simplify.
+ 
A. 
B. 
C. 
D. 
Answer: C
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Solve.The side of a square equals the length of a rectangle. The width of the rectangle is 4 meters longer than its length. The sum of the areas of the square and the rectangle is 48 square centimeters. Find the side of the square.
A. 6 cm B. 2 cm C. 4 cm D. 16 cm
Solve the equation for the specified variable.V = 
Bh for h
A. h = 
B. h = 
C. h = 
D. h = 
Maximize 
with 
and 
varid="variable_id_field" variablename="impvar_3d128de1a923479486e4c56d6" />, and 
, 
, and 
.
?
A. 
B. ?
C. ?
D. ?
E. ?
Solve the problem.At a pencil factory, the average worker produces 75 pencils per day, with a standard deviation of 11 pencils per day. One worker produces 71 pencils. Is the number of pencils this worker produced unusually high or low?
A. No B. Yes, unusually low C. Yes, unusually high