Abag contains 3 red marbles, 4 blue marbles, and 6 green marbles. which pair of events are complementary events? a) choosing a blue marble; choosing a green marble b) choosing a red marble; choosing a marble that is not blue c) choosing a blue marble; choosing a red marble d) choosing a green marble; choosing a marble that is not green

Event D

Step-by-step explanation:

Complementary events are those events that are opposites of each other. i.e. in this case the complementary event for choosing a green marble is not choosing a green. It has nothing to do with choosing or not choosing marbles of colors other than green.

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

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yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.