?What is the best reason for lining up the decimal point when adding or subtracting decimal numbers?
?
A. ?In order to line-up the place-values of each digit.
B. ?In order to line-up the decimal point.
C. ?In order to follow the procedure of the addition/subtraction algorithm.
D. ?You cannot perform the operation otherwise.
E. ?So you can annex zeros when necessary.
Answer: A
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Determine the indefinite integral.
A. - 
sech-1 
+ C
B. - 
csch-1 
+ C
C. 
csch-1 
+ C
D. sinh-1 
+ C
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A. 16.18 ft B. 50 ft C. 161.8 ft D. 61.8 ft E. none of these