Identify the property used in the first five steps to solve the equation 2(x-5) -6x =- 22 step 1 a) associative property b) commutative property c) distributive property step 2 a) associative property b) commutative property c) distributive property step 3 a) addition property of equality b) multiplication property of equality step 4 a) addition property of equality b) combine like terms step 5 a) addition property of equality b) multiplication property of equality

The functions q and r are defined as follows. q(x)= -2x+2 r(x)= x^2 - 1 find the value of r(q(

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

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.