Rectangle abc d has a length represented by the expression 2x -4 and the word represented by the expression 4x +7 the perimeter of the rectangle is 102 feet what is the value of x in feet

What is the value of the expression below? 148+(-6)| + |– 35= 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.

Stacey filled her 1/2 cup of measuring cup seven times to have enough flour for a cake recipe how much flour does the cake recipe calls for