Solve the problem.The table shows an area's population (in millions) every 10 years from 1975 to 2015. What was the difference in population from 1985 to 2015? 
A. 1.416 million
B. 4.956 million
C. 3.54 million
D. 41.064 million
Answer: C
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Use implicit differentiation to find dy/dx.y cos 
= 7x + 7y
A. 
B. 
C. 
D. 
Solve.The following table shows the daily evaporation and usage totals, in acre-feet, during a summer week at a certain dam. Use these data to answer the questions.DayDaily Evaporation (in acre-feet)Daily Usage (in acre-feet)Sunday61.4 203.3Monday59.7 201.7Tuesday60.1219.5Wednesday57.2229.6Thursday61.6200.7Friday65.3212.5Saturday59.8210.3(a) Find the mean daily evaporation.(b) Find the median daily evaporation.(c) Find the mean daily usage.(d) Find the median daily usage.
A. (a) 61.5 acre-feet, (b) 60.1 acre-feet, (c) 209.4, (d) 210.3 B. (a) 60.7 acre-feet, (b) 60.1 acre-feet, (c) 211.1, (d) 210.3 C. (a) 61.5 acre-feet, (b) 57.2 acre-feet, (c) 209.4, (d) 212.5 D. (a) 60.7 acre-feet, (b) 57.2 acre-feet, (c) 211.1, (d) 212.5
Use the graph of a known basic function and horizontal shifts to sketch the function.f(x) = |x + 1|
A. 
B. 
C. 
D. 
Completely factor the polynomial or state that the polynomial is prime.8y2 + 18y + 9
A. (8y + 3)(y + 3) B. (2y + 3)(4y + 3) C. (2y - 3)(4y - 3) D. prime