A fish tank has 8 goldfish 6 tetras 4 snails ans 2 platies what is the ratio of tetras to platies?. ​

The ratio of tetras to platies is 3:1 or 3/1

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6:2 (Simplified would be 3:1 )

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Can you mark me brainliest for this?

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

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d. it is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

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