Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.(9x1/9 ? y1/9)2
A. 81x2y2
B. 81x2/9y2/9
C. 81x1/81y1/81
D. 81x1/18y1/18
Answer: B
Mathematics
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Rewrite the expression without absolute value bars.
A. 5 B. -13 C. 13 D. -5
Mathematics
A water pipe is to be installed on the diagonal of a lot which is 15. 80 m by 100 m. To the nearest tenth of a meter, how much pipe will be required?
(a) 111.7 m (b) 90 m (c) 128.1 m (d) 132.4 m
Mathematics
The bar graph below shows the yearly net income for Widgets, LTD. 
What was the net income (in dollars) for Widgets, LTD in 1999?
A. $324 B. -$324 C. $324,000 D. -$324,000
Mathematics
Write an equivalent expression using radical notation and, if possible, simplify. Assume that even roots are of nonnegative quantities.(x8y8)1/9
A. 
B. 
C. 
D. x72y72
Mathematics