Evaluate the expression.
A. - 
B. 
C. 
D. - 
Answer: C
Mathematics
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Rewrite the expression in terms of exponentials and simplify the results.ln 
+ ln (cosh 9x + sinh 9x)
A. 11x B. 7 C. ln (e9x - e-2x) D. 7x
Mathematics
Given the premises marked A, B, and C and the conclusion, decide whether the argument is valid or invalid.A. All people who work for a living make money.B. All people who make money are happy.C. Some people who own pets are happy.Conclusion: Some people who own pets make money.
A. Invalid B. Valid
Mathematics
Find the difference.89.7822 - 67.3863
A. 22.3959 B. 22.2959 C. 22.3859 D. 23.3959
Mathematics
Write the following in simplest form using positive exponents.3?11 ? 37
A. 318
B. 
C. 
D. 34
Mathematics