Compute the requested measurements of each shape and then place the measurements in order based on numerical value (disregard units) from least to greatest

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

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.

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?