Add or subtract by first simplifying each radical and then combining any like radicals. Assume that all variables represent positive numbers.
+ 
+ 
+ 4
A. 17
+ 14
B. 17
+ 20
C. 145
+ 160
D. 37
Answer: B
Mathematics
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Provide an appropriate response.
A conduit ABCD must be made so that ?CBE is 45°. If BE = 5 cm and AK = 16 cm, find the length of the conduit to the nearest thousandth of a centimeter. 
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Mathematics
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Change to the equivalent decimal.8
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Mathematics