For effective organization of takeoff and landing fields for Airbus A380−800 aircrafts at Qamdo Bamda Airport in China, the total runway was divided into three segments. The total length of the first and second segments is 2500m, while the same for the second and third, first and third segments are respectively 4500m and 4000 m. What is the length of the shortest of the segments?

Describe all the numbers that when rounded to the nearest thousand are 645,000

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.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.