7 AVIATION After flying at an altitude of 500 meters, a helicopter starts to descend when its ground distance from the landing pad is 11 kilometers. What
is the angle of depression for this part of the flight?

Carla was trying to decide what to do saturday evening. she has $100 available to spend for the evening. she has narrowed her choices down to these events: braves game, a concert of an artist she likes, or the georgia aquarium. admission to the braves game is $25, hot dogs cost $10, sodas cost $5. the concert costs $25 for admission, $20 for a souvernir t-shirt, and $10 for a soda. the georgia aquarium has the show of a lifetime with an all you can eat and drink that costs $100. carla does not want to take any driving chances, so in addition to the cost of the aquarium, she will also need to pay for her uber/lyft, which is $15 each way. which option should carla choose if she wants to spend the least? based on that choice, what then is carla's oppotunity cost? fully explain your answer in at least one paragraph.

Mathematics viiwhat is the coefficient of a variable that appears by itself, like "a"?

Suppose there are collectively 277 finance and management majors (combined). of those, 85 males are finance majors, 65 females are finance majors, 52 males are management majors, and the remaining are female management majors. when testing (at the 5% level of significance) whether the gender and major are independent, what is the test statistic ? ( round your answer to 3 decimal places)