Data was obtained from a chemical process where the percent yield of the process is thought to be related to the reaction temperature (in degrees F). We would like to see if the temperature can predict the yield. The regression equation we obtained was Y = 17+ 2X. Use this information for all the parts. Interpret the slope of the regression line above. a. For each additional percent increase in yield, the mean temperature increases by 17 degrees. b. For each additional percent increase in yield, the mean temperature increases by 2 degrees. c. When the temperature is zero degrees, the yield is 17.d. For each degree increase in temperature, the mean yield increases by 2%.

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In new york city at the spring equinox there are 12 hours 8 minutes of daylight. the longest and shortest days of the year very by two hours and 53 minutes from the equinox in this year the equinox falls on march 21 in this task you use trigonometric function to model the hours of daylight hours on certain days of the year in new york city a. what is the independent and dependent variables? b. find the amplitude and the period of the function. c. create a trigonometric function that describes the hours of sunlight for each day of the year. d. graph the function you build in part c. e. use the function you build in part c to find out how many fewer daylight hours february 10 will have than march 21. you may look at the calendar.

Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups