Does the point(4, 7)satisfy the inequality 4x + 18y > 8 ?

Hello there! Yes, the point does satisfy the inequality.

To solve your question, we need to plug the points into the equation and solve.

4x + 18y > 8; (4, 7) Plug 4 and 7 into your equation.

4(4) + 18(7) > 8 Multiply 4 by 4 and 18 by 7.

16 + 126 > 8  Add the two values.

142 > 8

So, now that we have the simplified equation, think: is 142 greater than 8, like the statement says? Well, 142 IS in fact greater than 8, so it looks like the solution is a valid point in the equality, meaning, yes, the point does in fact satisfy the inequality.

I hope this helps, have a great rest of your day! :)

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:

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step-by-step explanation: