Solve the problem.A particular substance decays in such a way that it loses half its weight each day. How much of the substance is left after 9 days if it starts out at 128 grams?
A. 
g
B. 4 g
C. 2 g
D. 
g
Answer: D
Mathematics
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Determine whether the argument is valid or invalid by using a truth table.p ? q~ p----? ~ q
A. 
The argument is valid.
B. 
The argument is invalid.
C. 
The argument is valid.
D. 
The argument is invalid.
Mathematics
Integrate the function.
A. 
+ 
+ C
B. 8 sin-1 
+ 
+ C
C. 8x - 
+ C
D. 
+ 
+ C
Mathematics
Classify the statement as true or false.If a number is divisible by 8, then it is also divisible by 16.
A. True B. False
Mathematics
Provide an appropriate response.Write the largest five-digit number possible using the digits 5, 2, and 7. Use each digit at least once.
A. 77,572 B. 77,752 C. 77,725 D. 75,772
Mathematics