Solve the problem.Suppose that during a certain step in a chemical manufacturing process the amount of chlorine dissolved in a solution, measured in parts per million (ppm), is related to the elapsed time measured from the beginning of the step. Use the following table as a representation of this relationship. Make a scatter diagram of the data. What is happening to the amount of chlorine in solution during this time frame?
A. The amount of chlorine dissolved
increased as time elapsed.
B. The amount of chlorine dissolved
increased as time elapsed.
C. The amount of chlorine dissolved
increased as time elapsed.
D. The amount of chlorine dissolved
decreased as time elapsed.
Answer: B
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Divide and round to the nearest hundredth.190.6 ÷ (-2.3)
A. -8.29 B. 8.29 C. 82.87 D. -82.87
Solve the problem.Julie rode her bicycle 17 km in one afternoon. How many meters did she ride?
A. 0.017 m B. 17,000 m C. 0.17 m D. 1700 m
Solve the problem.The resistance of a wire varies directly as the length of the wire and inversely as the square of the diameter of the wire. A 20 foot length of wire with a diameter of 
has a resistance of 
What would the resistance be for a 
length, with diameter 
of the same kind of wire ?
A. 402 ohms B. 387.5 ohms C. 390 ohms D. 383 ohms
Simplify.
3
A. 
B. 
C. - 
D. - 