Four students were discussing how to find the unit rate for a proportional relationship "Look at the graph of the relationship. Find the y-value of the point that correspo rate." O "Look at the graph of the relationship. Count the number of units up and the nun move to arrive at the next point on the graph. Write these two numbers as a frac O "Look at the graph of the relationship. Find the x-value of the point that correspo rate." O "Look at the graph of the relationship. Find two points which have y-values that the difference in the corresponding X-values."​

In the diagram below, dab and dac are adjacent angles. if mdac = 25°, what is mdab in degrees? what is mbac in degrees?

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

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.