Lines with the same slope, and the same y-intercept are: A. Parallel, and have no solution

B. Parallel, and have infinitely many solutions

C. The same line, and have no solution

D. The same line, and have infinitely many solutions

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^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.

Select the correct answer from each drop-down menu. the length of a rectangle is 5 inches more than its width. the area of the rectangle is 50 square inches. the quadratic equation that represents this situation is the length of the rectangle is inches.