Find the product.(x + 2y)3
A. x3 + 8y3
B. x3 + 2x2y + 4xy + 4xy2 + 8y2 + 8y3
C. x3 + 6x2y + 12xy2 + 8y3
D. 3(x + 2y)
Answer: C
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Find the perimeter of the figure below
Find the center and radius of the circle.(x - 4)2 + y2 = 49
A. (4, 0); 7 B. (-4, 0); 49 C. (0, -4); 7 D. (0, 4); 49
Solve the problem.The logarithmic function f(x) = -100 + 80 ln x models the number of visitors (in millions) to a certain country's museums, where x is the number of years since the initial recording of the number of visitors. Use this function to estimate the number of visitors in year 45. Round to the nearest tenth of a year.
A. 306.8 million visitors B. 153.4 million visitors C. 204.5 million visitors D. 102.3 million visitors
Solve the problem.The cost of producing t units is C = 3t2 + 6t, and the revenue generated from sales is 
Determine the number of units to be sold in order to generate a profit.
A. t > 7 B. t > 6 C. t > 0 D. t > 5