Express the repeated multiplication in exponential notation.9 ? 9 ? 9 ? 9
A. 92
B. 49
C. 36
D. 94
Answer: D
Mathematics
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Given f(x) and g(x), find 
.f(x) = x2 + 14x + 45 and g(x) = x + 5
A. 
= x + 9
B. 
= x - 5
C. 
= x + 5
D. 
= x - 9
Mathematics
Solve the problem.A certain company has found that its expenditure rate per day (in hundreds of dollars) on a certain type of job is given by 
where x is the number of days since the start of the job. Find the expenditure if the job takes 4 days.
A. $3200 B. $80 C. $8000 D. $32
Mathematics
Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 
C. 
D. 1
Mathematics
Determine whether the improper integral converges or diverges.
A. Converges B. Diverges
Mathematics