The wavelengths of the lyman series for hydrogen are given by 1 λ = rh 1 − 1 n2 ,n = 2, 3, 4, . .
(a) calculate the wavelengths of the first three lines in this series. nm nm nm
(b) identify the region of the electromagnetic spectrum in which these lines appear. visible light region ultraviolet region gamma ray region x-ray region infrared region

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.

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me

What is the t intercept of the line given by the equation below y= -10x + 14