Use the vertical-line test to determine whether the graph represents a function.
A. Yes
B. No
Answer: A
Mathematics
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Simplify the expression.ex - 2 ln x
A. -2x ex
B. - x2ex
C. 
D. 
Mathematics
Solve the problem. Use a calculator with an LN or a LOG key.The population growth of an animal species is described by 
where t is the number of months since the species was introduced. Find the population of this species in an area 6 months after the species is introduced.
A. 240 B. 74 C. 470 D. 704
Mathematics
Use Heron's formula to determine the area of the triangle. If necessary, round the answer to two decimal places. 
A. 44.74 B. 195.03 C. 14.98 D. 4.86
Mathematics
Complete.17,640 min = ___ wk
A. 105 B. 12.25 C. 1.75 D. 175
Mathematics