A biologist counted the number of two types of salmon Chinook and steelhead at a dam he used the table below to record the number of salmon on different days on day five the biologist counted 16 China If the ratio of China to steelhead remain the same as on the previous four days how many steelhead should the biologists expect to count on day five record your answer in the table below

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answer: i realy don't get it that much can you me figer it out pleas you

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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

regards,  

mrb

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

x-3y=4

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