Choose the correct simplification of (2x3 + x2 − 4x) − (9x3 − 3x2).

11x3 − 2x2 − 4x
−7x3 + 4x2 − 4x
−2x3 − 2x2 − 4x
−7x3 − 4x2 − 4x

Given the equation y − 4 = three fourths(x + 8) in point-slope form, identify the equation of the same line in standard form. −three fourthsx + y = 10 3x − 4y = −40 y = three fourthsx + 12 y = three fourthsx + 10

An of a of 60. a of 36 is . isbe ?to .

Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample