?The number 
is an element in which of the following sets?
A. ?Real Numbers
B. ?Rational Numbers
C. ?Integers
D. ?Whole Numbers
E. ?Numbers greater than 7
Answer: A
Mathematics
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Perform the indicated operations and express your answer in the form a + bi. 
A. i
B. -7i
C. ±7
D. 7i
Mathematics
The graph of a function f is given. On the same axes, sketch the graph of f-1. 
A. 
B. 
Mathematics
Solve.The width of a rectangle is 6 kilometers less than twice its length. If its area is 176 square kilometers, find the dimensions of the rectangle.
A. length = 8 km, width = 10 km
B. length = 11 km, width = 16 km
C. width = 11 km, length = 16 km
D. length = 3 km, width = 
km
Mathematics
Perform the division. Write the answer with positive exponents.
A. -5x3 - 2x2 - 3 - 
B. 5x3 + 8x2 + 3
C. 5x3 + 2x2 + 3 + 
D. 5x3 + 2x2 + 3
Mathematics