Simplify the expression. Use positive exponents. Assume variables represent nonzero real numbers.
7
A. 
B. x21
C. 
D. x10
Answer: A
Mathematics
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Solve the problem.A rectangular board is 13 by 16. The foci of an ellipse are located to produce the largest area. A string is connected to the foci and pulled taut by a pencil in order to draw the ellipse. Find the length of the string.
A. 32 B. 16 C. 13 D. 26
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Answer the question.True or False: An equation of the type y = c (c is a constant) produces a line parallel to the 
A. False B. True
Mathematics
Write the augmented matrix for the system. 6x + 6y + 8z = 56 9x + 4y + 3z = 18 7x + 8y - 2z = 26
A. 
B. 
C. 
D. 
Mathematics
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics