38. the quality control director of a small company that manufactures exercise equipment knows that 10% of their

products are defective. market research shows that only 30% of their customers will use the product the first year

after the sale. so, the manufacturer expects that 3% of the units will be returned for service under a one-year full

warranty. this company expects to sell 600 units next year. (this problem is based on data from an actual company.)

What is the equation of the graph below? y=sec(x)-4

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.