Solve the problem.A bacteria culture starts with 2 units and triples every day. Write the general term of the sequence that describes the growth of this culture. Find the number of bacteria units there will be at the beginning of the fourth day.
A. an = 2(3)n - 1; 54 units
B. an = 3(2)n - 1; 24 units
C. an = 2(3)n; 162 units
D. an = (2)n; 16 units
Answer: A
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Find an equation of the line with the given properties. Express your answer in slope-intercept form. Graph the lines.Passing through (-9, 3) and perpendicular to 9x + 4y = 54
A. y = 
x + 7
B. y = - 
x + 3
C. y = - 
x + 7
D. y = - 
x + 54
Find the average value of 
over the given region.
over the rectangular solid in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 
B. 15
C. 10
D. 
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Round to the nearest whole number.
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