Direction: Answer the following problem below. Make sure to show the complete solution and answer. SHOW THE COMPLETE SOLUTIONS AND ANSWERS!

1)

Industry statistics reveal that the number of cellular subscribers in the United States totaled nearly 195 million at the end of 2005. A recently completed study revealed that the majority of consumer households are now acquiring multiple cellular phones. The following graph shows the percentage of households with multiple cellular phones, m, as a function of the number of years since the second quarter of 2002, y. 62- 60- 58 - Percentage of Households 50 0.5 1 1.5 2 2.5 3 3.5 4 Years Since 2nd Quarter 2002 (a) Determine the practical domain and range for m = Ry). This answer has not been graded yet. (b) Explain what the graph means in its real-world context. O As the years increase, the percentage of households with multiple cellular phones increases and decreases at different times, but the overall trend is decreasing. O As the years increase, the percentage of households with multiple cellular phones always decreases. O As the years increase, the percentage of households with multiple cellular phones always increases. As the years increase, the percentage of households with multiple cellular phones increases and decreases at different times, but the overall trend is increasing. O As the years increase, the percentage of households with multiple cellular phones does not change.r m . i . . 8(p. r, n, t) = p(1 + F) IS the formula used to calculate the balance. 8. In an Investment account WIth a lump sum invested and interest compounded a xed number of times a year for a certain number of years. The independent variables represent the following. p is the amount invested :- is the nominal interest rate as a decimal n is the number of times the compounding occurs in a year t is the years the money is invested Compute the value of 8(600, 0.05, 11, 4). (Round your answer to two decimal places.) arson, 0.05, 11, 4) = s [:1 x The formula for calculating the minimum speed of a car in miles per hour at the beginning of a skid, S, is S(d, f, n) = v 30dfn, where d is the skid distance in feet, f is the drag factor for the road surface, and n is the braking efficiency as a percent (100% = 1.00).+ Calculate S(50, 0.85, 1). (Round your answer to two decimal places.) S(50, 0.85, 1) = x mph