Solve the problem.The amount of tread left on a tire varies inversely as the number of miles the tire has traveled. A tire that has traveled 40,000 mi has 
in. of tread left. How much tread will be left on a tire that has traveled 19,000 mi?
A. 
in.
B. 64,000 in.
C. 
in.
D. 
in.
Answer: A
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Evaluate the integral.
A. ln 
B. 0
C. 9 ln 
D. 9
Provide an appropriate response.The annual interest on a bond is the current selling price of the bond times the stated yearly interest rate.
A. True B. False
Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero.f(x) = x3 + 3x2 - x - 3
A. -1, multiplicity 1, crosses the x-axis; 1, multiplicity 1, crosses the x-axis; - 3, multiplicity 1, crosses the x-axis. B. 1, multiplicity 2, touches the x-axis and turns around; - 3, multiplicity 1, crosses the x-axis. C. -1, multiplicity 1, touches the x-axis and turns around; 1, multiplicity 1, touches the x-axis and turns around; - 3, multiplicity 1, touches the x-axis and turns around D. 3, multiplicity 1, crosses the x-axis; 1, multiplicity 1, crosses the x-axis; - 3, multiplicity 1, crosses the x-axis.
Solve. Remember to insert units when writing your answer.A floor tile is 39.12 cm wide. How many tiles in a row are needed to cross a room 9.78 m wide?39.12 cm
9.78 m
A. 2.5 tiles B. 2500 tiles C. 25 tiles D. 250 tiles