Jakob simplified the expression as shown.
(6.7x-.4x--2)
6.7x-3-3.4x-1-2x-2
(6.7x-3.4x-2x)+(-3-1-2)
1.3x-6
what was jakob's error in subtracting the expressions?
o he used the commutative property incorrectly.
he used the distributive property incorrectly.
o he used the associative property incorrectly.
he simplified the x coefficients incorrectly.

You are cycling around europe with friends. you book into a hostel and you ask the owner what the ratio of men to women is currently staying there. there are 24 men and 6 women. what is the ratio of men to women in its simplest form?

What properties allow transformation to be used as a problem solving tool

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.