Demos Scientific 1616424710535
Demos De Cox
Calculate the surface area of the following prism to 2 decimal places.
2.5 cm
8.5 cm
5.1 cm
6.8 cm
A 43cm
85.68cm
43.35cm
84cm

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.

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1