Acertain color paint should have a mix of blue and green and a ratio of 5: 2 if a house painter needs to use 8 gallons of green paint how many gallons of blue paint should he mix with it in order to obtain the right color

20 Gallons

Step-by-step explanation:

blue:green

5:2

Green paint is 8 gallons

Plug 8 gallons into the ratio and get...

20:8

There are 20 gallons of blue paint

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)

step-by-step explanation:

pla·gia·rism

/ˈplājəˌrizəm/

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noun

the practice of taking someone else's work or ideas and passing them off as one's own.

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