which equation shows the substitution method being used to solve the system of linear equations?
x + y = 6
x = y + 2
a.
x = (x – 6) + 2
b.
x + (y + 2) = 6
c.
(y + 2) + y = 6
d.
x + y = y + 2

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain