Factor each trinomial. then match the polynomial (term) on the left with its factored form (definition) on the right.

match term definition
x2 _ 4x _ 12 a) (x _ 6)(x + 2)
x2 + 4x _ 12 b) prime
x2 _ x _ 12 c) (x _ 4)(x + 3)
x2 _ 7x _ 12 d) (x _ 2)(x + 6)

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 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.

Solving algebraic equations 2m+3=11