Simplify the expression. Assume that all variables are positive when they appear.
? 
A. 
B. 
C. 255xy
D. 
Answer: A
Mathematics
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Write a fraction to represent the shaded portion of the figure.
A. 
B. 
C. 
D. 
Mathematics
Use the appropriate geometric formula from the following list to find the requested measure. 
The area of two squares, each with a side measuring 15 yards
A. 225 sq yd B. 220 sq yd C. 60 sq yd D. 450 sq yd
Mathematics
The quantity Q of charge in coulombs C that has passed through a point in a wire up to time t (measured in seconds) is given by 
Find the current when t=1s.
a. 24 b. 15 c. 18 d. 26 e. 1
Mathematics
Use the binomial theorem to expand the binomial.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics