A boat sails directly away from a skyscraper located on the edge of a large lake. The skyscraper is 120 meters
tall. A photographer on the boat is taking pictures of
the skyscraper with a camera that has a 28° viewing
lens.
What is d, the approximate distance that the boat
must be from the base of the skyscraper before the
camera first captures its entire length in a photograph?

Ineed with number 17 i don’t get it at alll

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95

If a piece of wood with a length of five feet is cut into six equal pieces, what is the length of each piece?