An expression is shown below: the square root of 18 plus the square root of 2 Which statement is true about the expression? It is rational and equal to 4 times the square root of 2. It is irrational and equal to 4 times the square root of 2. It is rational and equal to 3 times the square root of 2. It is irrational and equal to 3 times the square root of 2.

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

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7

step-by-step explanation:

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step-by-step explanation:

x^(1/6) · x^(1/6) · x^(1/6)   ·x^(1/6) = x^(4/6)   since we add the exponents

4/6 can be simplified to 2/3

the simplified form is x^(2/3)

the answer is 1/4

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