K 2x
L
X-3
Р
M M
Using the diagram above, what is the measure of ZKPN?
0 28
31
58
62

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.

1: 4 if the wew 35 surfboards at the beach how many were short boards?

X+y=-4 x-y=2 use elimination with adding and subtraction