Swedish researchers concluded that viewing and discussing the arts soothes the soul and helps relieve medical conditions such as high blood pressure. This conclusion was based on a study in which 100 random selected elderly women gathered once a week to discuss different works of art. The study also included a control group of
100 random selected elderly women who met once a week to discuss their hobbies and interests. At the end of 4 months, the art discussion group was found to have a
more positive mental attitude and to have lower blood pressure than the control group. What is the explanatory variable for this study:

Shane can shovel the driveway in 4 hours, but if his sister it would take 2 hours. how long would it take taylor to shovel the driveway alone

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

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.