Right triangle ABC, with one 60-degree angle is inscribed in a circle. If the area of the circle is 256pi, what is the perimeter of the triangle? Leave your answer in the format: (2+3root5) pls I need this rn asap

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.