Use a combination of rules for exponents to simplify. Write answers with only positive exponents. Assume that all variables represent nonzero real numbers.
-4
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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The perimeter of a rectangle is 22 inches and the area is 30 square inches. Find the length and width of the rectangle.
A. 5 and 12 B. 10 and 12 C. 5 and 6 D. 10 and 6 E. none of these
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Solve the problem.A machine in a factory produces 540 units each hour. How many units does the machine produce per minute?
A. 216 units B. 22 units C. 4 units D. 9 units
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Graph the ellipse.
+ 
= 1
A. 
B. 
C. 
D. 
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Solve the problem.3(x + 1) - 5 ? 16 and 2(1 - x) + 21 > 3
A. [6, 10) B. (-?, 6) ? [10, ?) C. (6, 10] D. (-?, 6] ? (10, ?)
Mathematics