An engineer on the ground is looking at the top of a building. the angle of elevation to the top of the building is 46á. the engineer knows the building is 250 ft tall. what is the distance from the engineer to the base of the building to the nearest whole foot?

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

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.

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?