hi I have a calculus question it says Two forces of 70 N act on an object. The forces form an angle of 57degree between them. Calculates the resultant force and the force that must be applied to the object to create balance. (Shows diagram of force vectors.)

Find the missing factor in exponential form 48^2=3^2 • ?

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.

One hectometer is a) 1/1000 of a meter. b) 1/100 of a meter. c) 10 meters. d) 100 meters. e) 1000 meters.