Graph the polar equation.r = 3(2 + 2 sin ?)
A. 
B. 
C. 
D. 
Answer: B
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Factor the trinomial, or state that the trinomial is prime.x2 - 8x + 15
A. (x - 3)(x - 5) B. (x + 3)(x + 1) C. prime D. (x + 3)(x - 5)
Sketch the graph of the function and its inverse on the same coordinate axes.f(x) = 3x
A. 
B. 
C. 
D. 
Solve the problem.The U.S. Maritime Administration estimated that the cost per ton of building an oil tanker could be represented by the model 
where y is the cost in dollars per ton and x is the tons (in thousands). What size of oil tanker (in thousands of tons) can be built for $200 per ton?
A. 34 thousand tons B. 264 thousand tons C. 335 thousand tons D. 785 thousand tons
Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.Assume that the volume of the earth is 5 × 1014 cubic meters and the volume of a bacterium is 
cubic meters. If the earth could be filled with bacteria, how many would it contain?
A. 2.0 × 1030 bacteria B. 5.0 × 10-31 bacteria C. 5.0 × 1031 bacteria D. 2.0 × 10-30 bacteria