Help asap! i will mark brainliest A guy wire supports a tower. The guy wire makes a 48° angle with the ground and touches the ground 20 ft from the base of the tower.

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.

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form

Can someone me with this? i’m not sure what to put for my equations.