Deborah used blocks to model the following situation. How can Deborah use her model to find the number of speedboats the dealer sells if it sells 12 fishing boats? A boat dealer sells 4 fishing boats for every 3 speedboats it sells. The model can be used like a bar diagram. Since the dealer sold 12 fishing boats, each block represents _ fishing boats or speedboats. The dealer sells _ speed boats.

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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.

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)