ttions for Proportional Relationships Question 6 ( 1 pout) Read the doscription of a proportional relationship. Nellie and her friends set out to sea on their annual fishing trip. There is a proportional relationship betiveen the time (in hours) Nellie and her friends sailing, \( x \), and their distance from in shore (in miles), The equation that models this relationship is \( y=5 x \). How long does it take Nellie and her friends to sail 20 miles from shore? Enter your answer as a whole number of decimal. hours

A rocket is lainched in the air. Its height, in meters above sea level, as a function of time, \( t \), in seconds, is given by \( h(t)=-5 t^{2}+200 t+200 \)

The overhead reach distances of adult females are normally distributed with a mean of 200 cm and a standard deviation of 8.9 cm. a. Find the probability that an individual distance is greater than 213.40 cm . b. Find the probability that the mean for 15 randomly selected distances is greater than 198.50 cm . c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30 ? 1

Giselle washes her favorite jeans once a week. They come out five millimeters shorter each time she washes them. Define units for the time Giselle has been washing her jeans and the number of millimeters Giselle's jeans have shrunk. 1. How many millimeters shorter will Giselle's jeans be after twelve weeks? 2. How much shorter will her jeans be after one year? (Hint: there are 52 weeks in a year.) 3. Her favorite jeans are becoming high-water pants! They've shrunk 40 millimeters already. For how many weeks has she washed them?

Westion Ster muttiple sudies, a scientist discovers a new strain of a bacteria that triples every 6 days. What is the growth factor? Sorysthincorec. Try agin?

illustrate the distributive property of multiplication over subtraction, \( a(b-c)=a b-a c \), using \( a=-4, b=-5 \), and \( c={ }^{-}-2 \)