Find the area of the region enclosed by one loop of the curve. Select the correct answer.
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Mathematics
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Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.x1/3 ? x2/3
A. x2/9
B. 
C. x
D. x2/3
Mathematics
By graphing the function, visually estimate its domain and range.h(x) = |x| - 5
A. Domain: [5, ?); range: [5, ?) B. Domain: (-?, ?); range: [-5, ?) C. Domain: (-?, 5]; range: (-?, 5] D. Domain: (-?, ?); range: (-?, ?)
Mathematics
Find the indicated matrix.(A + B)2, where A = 
, B = 
A. 
B.
C. 
D. 
Mathematics
Solve.In chemistry, the pH of a substance is defined by 
where 
is the hydrogen ion concentration in moles per liter. Find the 
of a sample of lake water whose hydrogen ion concentration, 
, is 
moles per liter. (Round to the
nearest tenth.) A. 10.1 B. 6.4 C. 7.3 D. 8.5
Mathematics