A quality engineer samples 100 steel rods made on mill A and 150 rods made on mill B. Of the rods from mill A, 88 meet specifications, and the rods from mill B, 135 meet specifications.

a) Estimate the proportion of rods from mill A that meet specifications, and find the uncertainty in the estimate.

b) Estimate the proportion of rods from mill B that meets specifications, and find the uncertainty in the estimate.

c) Estimate the difference between the proportions, and find the uncertainty in the estimate.

dont trust me im no expert these losers made me fail a test bro this sucks

step-by-step explanation:

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

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mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

answer: x=60

a) 0,0; 1,1; and 2,2

step-by-step explanation:

these have the exact same coordinates, thus they are the correct function.