Add or subtract as indicated. Write the answer in simplest form.
- 
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem by integration.Under specified conditions, the time t (in min) required to form x grams of a substance during a chemical reaction is given by 
Find the equation relating t and x if x = 0 g when t = 0 min.
A. t = 
ln 
- 
ln 
B. t = 
ln 
+ 
ln 
C. t = 
ln 
- 
ln 
D. t = 
ln 
+ 
ln 
Form the negation of the statement.Today is July 16
A. Yesterday was not July 14. B. It is not true that today is July 17. C. Today is not July 16. D. Today is not July 17.
Determine whether the statement is a self-contradiction, an implication, a tautology (that is not also an implication), or none of these.[(p ? q) ? r] ? [~r ? (p ? q)]
A. Self-contradiction B. Tautology C. Implication D. None of these
Determine whether the vectors v and w are parallel.v = 
, w = 
A. Not parallel B. Parallel