Determine the domain and range of the function. Then graph it.f(x) = 
+ 2
A. domain = (-?, ?), range = (-?, ?)
B. domain = [0, ?), range = [2, ?)
C. domain = (-?, ?), range = (-?, ?)
D. domain = [2, ?), range = [0, ?)
Answer: C
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Write the first five terms of the geometric sequence satisfying the given conditions.a = -9, r = -7
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A. 0.61 yr B. 6.15 yr C. 0.06 yr D. 15.10 yr
Match the function f with its graph.f(x) = log1/2(x + 2)
A. 
B. 
C. 
D. 
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where t is time in years since the initial amount of 200 mg was present. Find the amount left (to the nearest mg) after 71 years.
A. 43 mg B. 198 mg C. 85 mg D. 84 mg