Provide an appropriate response.A company advertises an average of 42,000 miles for one of its new tires. In the manufacturing process there is some variation around that average. Would the company want a process that provides a large or a small standard deviation? Justify your answer.
What will be an ideal response?
Answers will vary. Possible answer: A small standard deviation would be preferable as this would indicate that the lifetimes of the tires do not vary too widely around the mean.
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Using the curve-sketching guide, select the graph of the function.
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A. ?
B. ?
C. ?
Solve the problem.A plumber has a 19-ft piece of PVC pipe. He needs to cut the pipe into sections 
-ft long. How many sections will he be able to cut from the pipe?
A. 29 B. 30 C. 31 D. 11
Find the limit if it exists. 
What will be an ideal response?
Solve the problem.The pH of a chemical solution is given by the formula pH = -log10[H+], where [H+] is the concentration of hydrogen ions in moles per liter. Find the pH if [H+] = 4.2 × 10-14. Round to the nearest hundredth.
A. 13.38 B. 14.38 C. 14.62 D. 13.62